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Reproductive center not graduated to obstetrics

Publish: 2021-05-21 07:12:58
1. You can do it without a marriage certificate. But proof should be provided.
2. bitcoin is the ancestor of all virtual currencies, with the highest price and value among all known digital currencies. But for the new people who lack experience and technology, mining is becoming more and more difficult, and simply speculation bitcoin is also a big risk. Another operation method and profit model (I personally test, extremely low risk, stable income, practical) may allow you to better control bitcoin
3. 1 Crushing and grinding

according to the investigation, jaw crushers are mostly used in China's gold concentrators for coarse crushing, standard cone crushers for medium crushing, and short head cone crushers and counter roller crushers for fine crushing. Medium and small gold concentrators mostly adopt two-stage one closed circuit crushing process, while large gold concentrators adopt three-stage one closed circuit crushing process
in order to improve the proction capacity of mineral processing and tap the potential of equipment, the crushing process has been reformed to improve the utilization coefficient of the grinding machine. The main measures adopted are more crushing and less grinding to rece the particle size of the incoming grinding stone< (2) gravity separation

gravity separation is widely used in rock gold mines. It is mostly used as an auxiliary process to recover coarse gold in grinding circuit, which creates favorable conditions for flotation and cyanidation process, improves beneficiation indexes, increases the total recovery of gold, and plays a positive role in increasing output and recing cost. More than 10 gold concentrators in Shandong Province have adopted the gravity separation process. The average total recovery rate can be increased by 2% ~ 3%. The economic benefit of the enterprise is good. According to incomplete statistics, the annual profit can be several million yuan. Henan, Hunan, Inner Mongolia and other provinces (regions) have also achieved good results, the main equipment used are chute, shaker, jig and short cone cyclone. From the view of most gold mines in China, the flotation gravity combined process (gravity separation for flotation tailings) is suitable for use. In the future, it is necessary to vigorously promote the stage grinding stage separation process and advocate the principle of early recovery< (3) flotation

according to the survey, about 80% of China's rock gold mines adopt flotation method for gold separation, and the concentrate proced is mostly sent to non-ferrous smelters for treatment. Due to the increasing development of cyanidation and in order to improve the economic benefit and rece the loss of concentrate transportation, the proct structure has changed greatly in recent years. Most of them adopt on-site treatment (of course, because of the contradiction between beneficiation and metallurgy and pricing problems, the mine is forced to treat on-site), which promotes the great development of flotation technology and occupies an important position in gold proction. There are usually two kinds of flotation processes: preferential flotation and mixed flotation. In recent years, new progress has been made in technological process improvement and reagent addition system, and flotation recovery has been improved significantly. According to the investigation results of flotation process indexes of more than 40 gold concentrators in China, the flotation recovery rate of sulfide ore is 90%, and a few of them are as high as 95% ~ 97%; The recovery of oxide ore is about 75%; Some of them are 80% - 85%. In recent years, there are a lot of innovation and scientific research achievements in flotation process, and the effect is obvious. Stage grinding flotation process and gravity flotation combined process are the main trend of flotation technology development in China. For example, Xiangxi Gold Mine adopts gravity flotation combined process to grind ore in stages and separate ore in stages, which can obtain better indexes and increase recovery by more than 6%; Jiaojia gold mine, Wulong gold mine, Wenyu Gold Mine and Dongchuang gold mine have also achieved certain results. Another example is Xincheng Gold Mine, where the original flowsheet is direct flotation of raw ore. e to the high mud content of the ore itself and the insufficient cemented filling strength of mining tailings, some mud and sand are brought in, the beneficiation indexes continuously decrease. Through investigation and test, the process flow of mud sand separation is adopted, the recovery rate is increased from 93.05% to 95.01%, the concentrate grade is increased from 135g / T to 140g / T, and the proction is stable. Because the grade of raw ore in Jinchangyu Gold Mine is decreasing year by year, the flotation index is reced. Through the cooperation with Shenyang Gold Institute and other units, the branch flotation process is adopted, and the flotation index and concentrate grade are improved. This scientific research achievement (passed the technical appraisal in January 1988) provides new enlightenment for the reform of flotation process. Of course, like other methods, flotation method is not omnipotent, and it is impossible to be effective for all gold bearing ores. The ore properties should be mainly considered. When selecting the technological process, it is necessary to carry out various demonstrations and tests
in recent years, in order to improve the separation effect, many improvements and researches have been made on the reagent addition system and mixed medication, and new progress has been made in the automatic control of dosing< (4) chemical separation hydrometallurgical gold extraction process

1. Mixed mercury gold extraction process

is an ancient gold extraction process, which is simple, economical and suitable for the recovery of coarse monomer gold. This method is still used in many gold mines in China. With the development of gold proction and the progress of science and technology, the process of extracting gold by mixed mercury method has been improved and perfected. Due to the increasingly stringent requirements of environmental protection, some mines have cancelled the mercury mixing operation and replaced it by gravity separation, flotation and cyanidation
in the proction of gold, the process of extracting gold by mixed mercury method still plays an important role, and has been applied at home and abroad. At present, this technology has been applied in many gold mines, such as Zhangjiakou, Hebei, Ergou, Liaoning, Jiapigou, Jilin and Yinan, Shandong. Liaoning Ergou gold mine was originally a single flotation process. According to the ore properties, it was changed into a combined process of mixed mercury and flotation. The total recovery was increased by 7.81% (the recovery of mixed mercury was 64.6%), the tailings grade was reced from 0.74g/t to 0.32g/t, and the annual benefit was 1.58 million yuan. The key to the process of gold extraction by mixed mercury method is how to take protective measures to eliminate mercury pollution< Cyanidation is the main method of extracting gold from ore or concentrate. The process of gold extraction by cyanidation includes: cyanidation leaching, washing and filtration of leaching pulp, extraction of gold from cyanidation solution or cyanidation pulp and smelting of finished procts. There are two kinds of gold extraction processes in the existing cyanidation plants of gold mines in China. One is the so-called conventional cyanidation process (CCD method and CCF method) in which the thickener is used for continuous countercurrent washing and zinc powder is used to replace the precipitation to recover gold. The other is that there is no need for filtration and washing, CIP process and CIL process were used to recover gold from cyanide pulp directly by activated carbon adsorption
the conventional cyanidation process can be divided into two types according to different materials: one is cyanidation plant which processes flotation gold concentrate or mixed mercury and gravity tailings. Most of them are large state-owned mines. For example, Jinchangyu in Hebei Province; Wulong, Liaoning, Yangzhaiyu, Henan; Zhaoyuan, Xincheng, Jiaojia and Sanshan gold mines in Shandong Province. The other is a gold extraction plant which processes argillaceous oxide ore and uses whole slime stirring cyanidation. Such as Jilin trench; Tuanjiegou, Heilongjiang Province; Xinqiao gold and silver mine in Anhui Province
the cyanidation process has been used in China since 1930s. During 1936-1938, Jinguashi gold mine in Taiwan used cyanidation zinc powder replacement process to extract gold with an annual output of 150000 taels
after entering the 1960s, in order to adapt to the development of national economy and vigorously develop the proction of mineral gold, intermittent mechanical agitation cyanidation process and continuous agitation cyanidation process were successively adopted in some mines to replace percolation cyanidation process. In 1967, the continuous mechanical agitation cyanidation process was first realized in Lingshan and Linglong gold concentrators of Zhaoyuan gold mine, Shandong Province. The cyanidation rate increased from 70% to 93.23%. Since then, the continuous mechanical agitation cyanidation process has been rapidly promoted in major gold mines in China. The cyanidation plants of Changyu gold mine in 1970 and Wulong gold mine in 1977 were successively built and put into operation. Since then, a number of mechanical stirring cyanidation plants have been built and put into operation in China. The cyanidation process has entered a new stage of development
with the continuous development of gold proction and the rapid development of gold resources, a large number of argillaceous high gold bearing oxide ores have been increased since the 1980s. Research on the whole slime cyanidation agitation leaching of this kind of ores has been carried out, and a cyanidation plant with a daily processing capacity of 500t ore has been built in Tuanjiegou gold mine, Heilongjiang Province, which was put into proction in 1983. Since then, the whole slime cyanidation process has been widely used in Henan, Jilin, Hebei, Shaanxi, Inner Mongolia and other places. At the same time, in order to solve the difficulty of solid-liquid separation in dense filtration of argillaceous oxidized ore, Changchun Gold Research Institute began to use the non filtration carbon slurry process to extract gold from the ore of Tuanjiegou gold mine in November 1979. The experimental research lasted for two years and was successful. On this basis, in August 1984, China's first gold extraction plant with 50 tons of ore per day was designed and built in Linghu gold mine, Henan Province. It is a great step forward in the cyanidation process of gold extraction in China. The technology of extracting gold by carbon slurry has become one of the most important methods to treat argillaceous oxidized ore in rock gold mines. Since then, gold extraction plants have been established in Jilin, Henan, Inner Mongolia, Shaanxi and other places. At the end of 1984, the gold Bureau of the Ministry of metallurgical instry, in order to promote the application of carbon slurry process in China, transplanted and digested foreign advanced technology and equipment, cooperated with David McKee company of the United States, and established a 250t / D (xitongyu) and 450t / D (Zhangjiakou) carbon leaching gold extraction plant in xitongyu gold mine of Shaanxi Province and Zhangjiakou gold mine of Hebei Province, respectively. According to the investigation, the recovery rate of Zhangjiakou gold mine is 93.54% (the recovery rate of carbon slurry was 90.25% in 1988)
relying on science and technology, the experimental research on technological innovation has greatly improved the level of gold proction technology in China. For example, Jinchangyu Gold Mine successfully used zinc powder instead of zinc wire to replace gold mud, the replacement rate reached 99.89%, the gold grade of gold mud was significantly improved, the zinc consumption was reced from 2.2kg/t to 0.6kg/t, and the proction cost was greatly reced. Then, the application in Zhaoyuan, Jiaojia, Xincheng, Wulong and other mines also achieved obvious results. The heap leaching process of low-grade oxidized ore has been applied in Henan, Hebei, Liaoning, Yunnan, Hubei, Inner Mongolia, Heilongjiang, Jilin, Shaanxi and other provinces after the successful test in Dandong Hushan gold mine. The economic effect is obvious, which opens a way for the development and utilization of low-grade oxidized ore. According to incomplete statistics, the annual output of gold proced by heap leaching in China is more than 10000 taels (only 13000 taels of gold proced by heap leaching in Henan Province), but compared with developed countries, the scale of heap leaching in China is smaller, generally 1 × 103~3 × 103t / heap, 10000 t / heap is less, and there is a big gap in technology. In 1988, Shuangwang gold mine in Tai County, Shaanxi province put into operation, and achieved gratifying results (ore grade 1.5g/t)
the introction and digestion of foreign advanced technology and equipment (such as high-efficiency thickener, double screw agitating leaching tank in the United States, Mars pump in Japan, belt filter, etc.) has further improved the equipment level and technical level of China's gold proction, and promoted the development of China's gold proction equipment in the direction of high efficiency, energy saving, large-scale and automation. In recent years, new progress has been made in the research of new technologies such as thiourea extraction, thiosulfate extraction, preoxidation bacterial leaching, pressure catalytic leaching and resin adsorption. In 1979, Changchun Gold Research Institute successfully carried out the test of thiourea gold extraction. In 1984, a thiourea gold extraction workshop was built in Longshui mine, Guangxi, with a daily processing capacity of 10-20t of flotation gold concentrate. Although other processes are in the stage of experimental research and are preparing to be put into operation, it is enough to show that the gold extraction technology in China has developed to a new level< (5) gold smelting and recovery

gold smelting is the last process in gold proction, and its proct is finished gold. Smelting can be divided into roughing and refining. The refined and rough procts are alloy (commonly known as synthetic gold), and the local gold in China's gold mines is mostly synthetic gold
4. It's better to buy gifts online
I have a lot of experience in online shopping. Things on the Internet are really much cheaper and easy to buy. I collected a lot of popular goods and stores and made statistical rankings. Many of them were made by experts by comparing the reputation of stores, sales records and the comments of netizens. Of course, many of them were made by me through the exchange of purchase and netizens, It's all very popular. I've been shopping online for so many years. Now I know it's really convenient. Now I want to share it with you. Of course, I hope you can give me more space and popularity, and adopt my answers so that I can make money, Address:
taobibuy click CN
(change "point" to "." visit), where I share my super experience, detailed shopping steps and shopping experience summarized by me, which will certainly be of great help to your shopping! Go and have a look. There are many people logging in. It can't be opened. Please refresh it a few times< br />o(∩_ ∩) O hope to help you, hope to adopt me~
5. It's been about three months
6. Congratulations on your pregnancy ~ ~ reproctive centers all over the world are the same in this respect, right? After the success of the test tube, we should be very vigilant in the first two months, and there will be no big problem after the third month. Don't think too much about it. Take care of the baby
7. After 20 days of internship in obstetrics, I went to gynecology department yesterday.
in the 20 days of internship in obstetrics, under the guidance of the teacher, I basically mastered the diagnosis and treatment of some common obstetric diseases and some basic operations, which made me graally transition from a medical student to a doctor, and made me feel the particularity and necessity of clinical work, Now when I come into contact with clinical practice, I find that what I see in my actual work is not as simple as I think, nor as typical as what I write in the book. Most of the time, I have to rely on my own experience accumulated in my work. Therefore, only when I put in my internship and have a good experience can I graally accumulate experience. In addition, it makes me realize how to deal with different patients in clinical work, To make the doctor-patient relationship reach a harmonious platform, both sides are happy in the whole process. Doctors think for the sake of patients, patients understand doctors, and create a good medical environment.
obstetrics is relatively single, which seems relatively simple, but it is not so simple in practice. Doctors' judgment and decision-making are very important, such as natural childbirth, which is very common, Doctors must make a comprehensive evaluation of the patients, decide whether they can be delivered by * *, how to observe and evaluate ring the labor process, how to deal with the corresponding problems, and when it is necessary to terminate the pregnancy, The cases I have managed include: full-term pregnancy, spontaneous delivery, pregnancy inced hypertension, pregnancy with hyperthyroidism, pregnancy with aplastic anemia, pregnancy with heart disease, ICP, multiple pregnancy, hyperemesis gravidarum, threatened abortion, missed abortion, inced labor, ectopic pregnancy, uterine fibroids, placenta previa, premature rupture of membranes, fetal distress, umbilical cord around the neck, amniotic fluid pollution, The main operations of placental dissection are: suture removal, dressing change, four step palpation, fetal heart rate monitoring, surgical field disinfection, blood pressure measurement, uterine height and abdominal circumference
the operations we have seen include cesarean section, myomectomy, total hysterectomy, abortion, curettage, painless abortion, diagnostic curettage, incision and drainage of suppurative wound, lateral perineal incision, uterine packing, Uterine packing gauze removal, bone marrow puncture, amniocentesis...
I've seen neonatal physiological / pathological jaundice, neonatal equine teeth, neonatal nursing...
in a word, I think I've learned a lot ring this internship period. Here I want to say thank you to my teachers, nursing teachers and my patients for their guidance, cultivation and opportunity, Let me grow up slowly
8. Reproctive medicine has a bright future. If you think you're ok now, don't go to the doctor's degree. If you practice, you can go to the doctor's degree on the job, which will be better. School of medicine of Zhejiang University, School of medicine of Peking University, School of medicine of Shanghai Jiaotong University, School of medicine of Tongji University
9. You can sue them and expose them to the media
10. It's a reproctive doctor's order. I went to the obstetrics department to do it. As a result, I came out to show it to the reproctive doctor. After NT is finished, I can transfer to the obstetrics department. I don't have to go to the reproctive hospital in the future
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