1. Taiyuan
mining machinery factory yucaiyuan community is in Shengli Street, Taiyuan Housing Management Bureau has registered!
2. There are seven types of questions: (1) the midpoint of a chord with a slope is often set but not solved (point difference method): set two points on the curve as (x1, Y1), (X2, Y2), substitute them into the equation, and then subtract the two equations, and then apply the midpoint relationship and slope formula (of course, we should also pay attention to the discussion of asking for payment where the slope does not exist), Four parameters are eliminated. For example: (1) 2? 2? 1(a?b? If the midpoint of chord AB is m (x0, Y0), then there is 0? k? 0 22ababxy0x2y222? 2? 1(a? 0,b? Let the midpoint of the chord AB be m (x0, Y0), then there is 0? k? 0aba2b23y2=2pxp> Let the midpoint of the chord AB be m (x0, Y0), then 2y0k = 2p, that is, y0k = p.y2? The straight line passing through a (2,1) intersects the hyperbola at two points P1 and P2, and the line segment p1p2? 1 The trajectory equation of the midpoint P of 22 2) Focus triangle problem a point P on ellipse or hyperbola, and two focus F1, F2 triangle problem, commonly used sine and cosine theorem bridge. Let P (x, y) be ellipse 2? 2? At any point, F1 (?)? c. 0), F2 (C, 0) as the focus,? PF1F2??， ab?PF2F1?? 1) The centrifugal rate e? Sin (?) is verified; sin?? sin? 3 (2) find Pf1? The maximum value of PF2 |. 3 (3) the basic method of the positional relationship between a straight line and a conic is to solve the equations, and then transform them into a quadratic equation of one variable, and then use the discriminant, the relationship between the root and the number of 1 / 27 pages of the system, and the root formula to deal with them, Combined with the definition of three curves to solve. Typical example parabolic equation Y2? p(x? 1)(p? The intersection of X? Y? T and X axis is on the right side of the parabola 1) Proof: there are always two different intersections between a straight line and a parabola. (2) let the intersection of a straight line and a parabola be a and B, and OA ⊥ ob, find the expression of the function f (T) of P with respect to t 4) The related maximum (range) problem of conic curve is usually solved by algebraic method and geometric method. If the condition and conclusion of a proposition have obvious geometric meaning, it can be solved by graph property. If the conditions and conclusions of the proposition embody explicit functional relations, then the objective function (usually quadratic function, trigonometric function, mean inequality) can be established to find the maximum value 1) By solving the inequality, we can get the range of a, that is: "find the range, find the inequality". Or a can be expressed as a function of another variable, and the range of a can be obtained by calculating the range of the function; For (2), we should first express the area of △ nab as a function of a variable, and then find its maximum value, that is: "the maximum value problem, function idea". How to deal with the maximum value problem: 1. The key is to find the range of X and Y from the equation; 2. The transformation thought of combining number with shape and transforming the curve into straight; 3. In order to get the maximum value of quadratic function by discriminant, the quadratic equation is usually established by condition, and the maximum value is obtained by discriminant; 4. The maximum value is obtained by means of mean inequality. The parabola y2 = 2px (P & gt; The value range of a can be obtained when the straight line L passing through M (a, 0) and the parabola with the slope of 1 intersect at different two points a and B, | ab | ≤ 2p (1) 2) If the vertical bisector of line AB intersects the x-axis at point n, the maximum area of △ nab is obtained 5) The shape of the curve is known. Generally, this kind of problem can be solved by undetermined coefficient method. A typical example shows that the line L passes through the origin, the vertex of parabola C is at the origin, and the focus is on the positive half axis of X axis. If the symmetric points of point a (- 1,0) and point B (0,8) about L are all on C, the equations of line L and parabola C are obtained. 2 / 27 2. The shape of the curve is unknown - a typical example of solving the trajectory equation is given. Given the point Q (2,0) and the circle C: x2 + y2 = 1 on the rectangular coordinate plane, the ratio of the tangent length from the moving point m to the circle C to | MQ | is equal to the constant? (& gt; Find the trajectory equation of the moving point m and explain what curve it is 6) There is a problem of symmetry between two points on a straight line. The problem of symmetry between two points on a curve on a straight line can be solved in three steps as follows: find the line where the two points are, find the intersection point of the two lines, and make the intersection point in the conic shape Of course, we can also use Weida theorem and discriminant to solve the equation of known ellipse C in the typical example of x2y2?? 1, try to determine the value range of M, so that for the straight line y? 4X? M, there are two different points on the ellipse C43 about the symmetry of the straight line (7) the problem of two line segments vertical, the problem of conic two focal radius perpendicular to each other, commonly used K1 · K2? y1·y2?? 1 or coordinate operation of vector. In the typical example of x1 · X22, we know that the slope of the line L is k, and it passes through the point P (?)? 2,0), parabola C: y? 4(x? 1) There are two different intersections between the line L and the parabola C (as shown in the figure) 1) Find the range of K 2) The inclination angle of line l? The focal lines of a, B and parabola C are perpendicular to each other. 4、 Problem solving skills: 3 / 27 in teaching, students generally feel that the amount of calculation of analytic geometry problems is large. In fact, if we can make full use of geometry, Veda's theorem, the equation of curve system, and the strategy of "set but not seek", we can often rece the calculation
3. To the east of Mingguang Road, to the north of Heyu Road, to the west of Tongling Road, to the south of Datong Road, there are Yuyuan community, Zhongxiang mining machinery community, Heping garden, longhuayuan, lungshanxincun, Baoye City, Lvyuan, Heping garden, etc.
4. Static adsorption equilibrium is achieved after a long time of full contact between a specified amount of adsorbent and a fixed amount of solution. The static adsorption equilibrium can be determined by the following methods: (1) the volumetric method is used to determine the decrease of gas volume after a period of adsorption, keeping the pressure of gas phase unchanged 2) A gravimetric method for determining the added value of adsorbent weight by fully contacting adsorbent with gas;
5. The adsorption breakthrough curve shows the relationship between the discharge and the effluent concentration, which can guide the field personnel to control the flow.
6. I think it may be because the breakthrough curve is more quantitative, and the model (first-order, second-order, LDF, constant concentration wave, etc.) can be better used to calculate the adsorption velocity and adsorption kinetic diffusion coefficient
and the adsorption load curve I remember seems to be only available in fixed bed, or maybe my knowledge is not wide enough
I hope I can help you!
7. Input a solute aqueous solution such as KCl, KCl input time into the soil is t = 0, continuously measure the KCl content in the effluent at another measuring outlet, and start to zero, and KCl is detected at a certain time, and from then on, the KCl concentration in the effluent will change, draw a curve of KCl concentration in the effluent with time t, which is the breakthrough curve of solute (KCl)
generally, this method is used to measure some parameters characterizing soil properties, and draw a curve according to time and solute concentration, so as to calculate the values of some parameters (such as dispersion coefficient).
8. A
abandoned w ell 废井
absorption isotherm 等温吸附
abundance 丰度
acceptance probability 接受概率
acid mine drainage 酸性矿坑排水
acid rain 酸雨
acidity 酸度
acid 酸
active ( inactive) node 活动( 不活动) 结点
activity 活度
activity coefficient 活度系数
adhesive force 吸附力
adsorption 吸收，吸附
advection-diffusion equation 对流 － 扩散方程
advection-dispersion equation 对流 － 弥散方程
aerobic biodegradation 好氧生物降解
age dating of groundw ater 地下水定年
air pressure 气压
alkalinity 碱度
alluvial apron 冲积裙
alluvial fan 冲积扇
alluvial valley 冲积谷地
alluvium 冲积层( 物)
altitude effect 高程效应
aluminum silicate 铝硅酸盐
amplitude 幅度
anaerobic biodegradation 厌氧生物降解
analytical method / approach 解析法
analytical solution 解析解
angle of internal friction 内摩擦角
anhydration 脱水
anhydrite 硬石膏
anisotropy 各向异性
aqueous chemistry 水化学
aquiclude 隔水层
aquifer 含水层
aquifer system 含水层系统
aquifuge 不透水层
aquitard 弱透水层
arid region 干旱地区
arithmetic mean 算术平均
artesian aquifer 自流含水层
artesian w ell 自流井
artificial recharge 人工补给
atmospheric pressure 大气压力
autocorrelation function 自相关函数
B
backfill soil 回填土
background concentration 背景浓度
bandw idth 带宽
bar chart 条形图
barometric pressure 大气压力
base flow 基流
Bayes theorem 贝叶斯理论
bedrock 基岩
benchmark 基准
best linear unbiased estimate 最优线性无偏估计
bicarbonate 重碳酸根
biodegradation 生物降解
biological degradation 生物降解
bioremediation 生物修复
blind drainage area 内流区
blind valley 盲谷
boiling spring 沸泉
borehole geochemical probe 钻孔地球化学探头
borehole geophysics 钻孔地球物理
boring 钻孔
boundary condition 边界条件
boundary of specified head 给定水头边界
brackish w ater 微咸水
braided river / stream 辫状河
breakthrough curve 穿透曲线
brine 卤水
bromide / chloride ratio Br / Cl 比
bulk density 体积密度
buried karst 隐伏岩溶
C
Ca / Mg ratio Ca / Mg 比
calcite 方解石
calcium 钙
calcium carbonate 碳酸钙
calibrated model 校正模型
calibration 校准，校正
Cambrian-Ordovician aquifer 寒武 － 奥陶系含水层
capillarity 毛细现象
capillary w ater 毛细水
capillary zone / fringe 毛细水带
capture zone 捕获区
carbon cycle 碳循环
carbon dioxide 二氧化碳
carbon fixation 碳固定
carbon － 14 碳 － 14
carbon － 14 dating 碳 － 14 测年
carbonate rock 碳酸盐岩
case study 实例研究
casing 套管
cation exchange 阳离子交换
cation-anion balance 阴阳离子平衡
Cauchy boundary condition 柯西( 混合) 边界条件
chloride 氯化物，氯离子
chlorine － 36 氯 － 36
clastic rock 碎屑岩
clastic sedimentary rock aquifer 碎屑 沉积岩含水层
clay 粘土
clay soil 粘性土
clogging 堵塞
closed system 闭系统
closure criterion 收敛标准
coastal aquifer 滨海含水层
coefficient of compressibility 压缩系数
coefficient of leakage 越流系数
coefficient of permeability 渗透系数
coefficient of skew ness 偏斜系数
coefficient of variation 变差系数
cohesive soil 黏结性土壤
collapse 塌陷
column experiment 柱实验
compressibility 压缩性
concentration gradient 浓度梯度
conceptual model 概念模型
concrete dam 混凝土坝
condensation 浓缩
conditional ( unconditional) simulation 条件( 非条件) 模拟
conditional distribution 条件分布
cone of depression 降落漏斗
confidence interval 置信区间
confidence limit 置信限
confined aquifer 承压含水层
confining layer 隔水层
connate w ater 同生水
conservative pollutant 非降解污染物
consolidation 固结
consolidation of soil 土壤固结
constant head boundary 定水头边界
constant temperature zone 恒温带
constraint 约束( 条件)
contact spring 接触泉
contaminant plume 污染羽
contaminant transport modeling 污染 物 运移模拟
contamination source 污染源
continental drift 大陆漂移
continental effect 大陆效应
continuity equation 连续性方程
contour map 等值线图
convection 对流
coordinate system 坐标系
correlation length 相关长度
corrosion 腐蚀
covariance 协方差
critical depth 临界深度
crystalline rock 结晶岩
cumulative frequency function 累积频率函数
current meter 流量计
curve-matching procere 配线法
D
Darcian velocity 达西流速
Darcy's law 达西定律
data assimilation 数据融合
datum level 基准面
dead carbon 死碳
dead-end pore 死端孔隙
debris flow 泥石流
decay constant 衰变常数
decay equation 衰变方程
decision variable 决策变量
declustering 去丛
deep sedimentary w ater 深层沉积水
density-dependent flow 变密度流
depletion 消耗
depositional sequence 沉积序列
depression 洼地，坳陷
depression spring 下降泉，洼地泉
deterministic model 确定性模型
deuterium 氘
deuterium excess 氘盈余( 过剩)
dew point 露点
dew ater 排水，疏干
diffusion 扩散
digital elevation model 数字高程模型
dimensionless variable 无量纲变量
direction of maximum continuity 最大连续性方向
Dirichlet condition 狄里克莱边界条件
discharge 排泄
discharge area 排泄区
discharge of w ell 井的涌水量
discretization 剖分，离散
dispersion 弥散
dispersion coefficient 弥散系数
dissolution and precipitation 溶解与沉淀
dissolved oxygen 溶解氧
distributed pollutant source 分布式( 面) 污染源
distributed sink / source 分 布 式 ( 面 ) 汇 /源
diurnal change 昼夜变化
dolomite 白云岩
dolomitization 白云石( 岩) 化
drainage 排水
draw dow n cone 降落漏斗
draw dow n curve 降深曲线
drinking w ater standard 饮用水标准
al problem 对偶问题
ne 沙丘
Dupuit assumption / hypothesis 裘布依假设
ration curve 历时曲线
dynamic equilibrium 动态平衡
E
earthquake 地震
earth tide 固体潮
effect of barometric pressure 气压效应
effective porosity 有效孔隙度
effective stress 有效应力
effluent river 地下水补给的河流
electrical conctance 电导
electrical conctivity 电导率
electrical sounding 电测深
elevation effect 高程效应
elevation head 位置水头
enclosed ( non-enclosed) basin 闭合( 不闭合) 流域
endorheic basin 内流( 陆) 盆地
enthalpy 焓
entropy 熵
environmental isotope 环境同位素
equilibrium constant 平衡常数
equilibrium w eight 当量
equipotential line / surface 等势线 / 面，等水头线/面
equivalent 当量
ergodicity 各态历经，遍历性
erosion 侵蚀
error of estimate 估计误差
error tolerance 容许误差
Eularian approach 欧拉法
eustatic sea-level change 全球性海平面变化
evaporation 蒸发
evaporite 蒸发岩( 盐)
evapotranspiration 蒸发蒸腾
expected value 期望值
explicit method 显式法
exploitation and management of water resources水资源开发与管理
exposure 露头
extraction w ell 开采井
F
fault 断裂 / 断层
fault spring 断层泉
feasible solution 可行解
Fick's law 费克定律
field capacity 田间持水量
finite difference method 有限差分法
finite element method 有限单元法
first law of thermodynamics 热力学第一定律
first order irreversible reaction 一级不可逆反应
fissure 裂隙
fit 拟合
flow equation 流动方程
flow line 流线
flow net 流网
flow meter 流量计
fluvial deposit 河流堆积，冲积物
flux boundary 流量边界
forecasting problem 预报问题
forw ard problem 正演问题
fossil w ater 化石水
Fourier transform 傅里叶变换
fractionation 分馏
fracture 裂隙
fracture spring 裂隙泉
free-surface 自由面
fresh w ater-salt w ater interface 咸淡水界面
fully penetrating w ell 完整井
fundamental equation for flow 基本流动方程
G
gaining stream 潜水补给河，盈水河
Galerkin method 迦辽金法
general head boundary 通用水头边界
geologic map 地质图
geometric mean 几何平均
geophysical method 地球物理方法
geostatistical model 地质统计模型
geothermal anomaly 地温( 热) 异常
geothermal energy 地热能
geothermal field 地热田
geothermal gradient 地温梯度
geothermal reservoir 热储
geothermal w ater 地下热水
geothermal w ell 地热井
geothermics 地热学
geothermometer 地热温标
geyser 间歇喷泉
Ghyben-Herzberg relation 吉本 － 赫兹伯格公式
glacial deposit 冰川堆积，冰碛物
