De drawing of machining center

1. After an alpha decay, the number of charges decreases by 2, and the position of the new nucleus on the periodic table moves forward by 2 lattice; After a beta decay of the nucleus, the number of charges increases by 1, and the position of the new nucleus on the periodic table moves backward by 1 lattice. Beta decay and alpha decay. The former releases electrons, while the latter releases helium atoms, which usually occur in heavy elements.

2.

Alpha beta gamma followed by delta

after alpha gamma, the sequence is as follows: (sequence number, capital case, English phonetic alphabet, international phonetic alphabet, Chinese phonetic alphabet)

1, Α α Alpha A: LF alpha

2, Β β Beta beta

3, Γ γ Gamma GA: m gamma

4, Δ δ Delta delta

5, Ε ε Epsilon EP ` silon, Ζ ζ Zeta zat cut off Tower

7, Η η ETA EIT ETA

8, Θ θ thet θ It West Tower

9, Ι ι IOT aiot Yota

10, Κ κ Kappa kappa

11, Λ λ Lambda lambd lambda

12, Μ μ Mumju

13, Ν ν Nu NJU

14, Ξ ξ Xi Ksi Kexi

15, Ο ο Omicron omik ` Ron

16, Π π PI Pai school

17, Ρ ρ Rho Rou meat

18, ∑ σ Sigma ` sigma

19, Τ τ Tau tau set

20, Υ υ Upsilon JUP ` silon yupuxilong

21, Φ φ Phi Fai Buddha love

22, Χ χ Chi Phai West

23, Ψ ψ PSI PSAI Pusi

24, Ω ω Omega o ` MIGA Omega

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< H2 > extended data

Greek alphabet is the letter used in Greek, which is also widely used in mathematics, physics, biology, chemistry, astronomy and other disciplines. The Greek alphabet is similar to the English alphabet and the Russian alphabet, except that the symbols are different and the nature of the phonetics is the same

The Greek alphabet is the first alphabet with vowels in the world. The Cyrillic alphabet and the Georgian alphabet used in Russian and Ukrainian are all developed from the Greek alphabet. People who have studied Russian will feel familiar when they use the Greek alphabet. The Greek alphabet has entered the vocabulary of many languages. For example, Delta, the international vocabulary, comes from the Greek alphabet Δ， because Δ It's a triangle

3.

1 α： Angle, coefficient, angular acceleration, first, ionization degree, conversion rate

(2) β： Flux coefficient, angle, coefficient

(3) Ω： Ohm, angular velocity, angular frequency, electric angle of alternating current, mass fraction in chemistry, unsaturation

(4) γ： Conctivity coefficient, angle, specific heat capacity specific conctivity coefficient, angle, specific heat capacity ratio

“ α、β、Ω、γ” These are Greek letters. Greek letters are the letters used in Greek. They are also widely used in mathematics, physics, biology, chemistry, astronomy and other disciplines

extended data:

meaning of other Greek letters:

(1) Δ δ Delta delta change; Density; Diopter

(2) Ε ε Cardinal number of epsilon EP ` silon logarithm

(3) Ζ ζ Zeta zat coefficient; azimuth; Impedance; Relative viscosity; Atomic number

(4) Η η ETA EIT hysteresis coefficient; Efficiency (lower case)

(5) Θ θ thet θ It temperature; Phase angle

4. At present, there are many illegal paternity testing institutions in the network, which use low prices to attract customers. These institutions do not have national qualification and CMA laboratory accreditation, which can not guarantee the accuracy and legitimacy of the identification report, and the identification report does not have legal effect
it is recommended to check the official website of local department of justice or judicial bureau for formal paternity testing institutions.

5.

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