radioactivity

1 Are there rules for radioactivity in foods for international trade?

在国际贸易方面，有无食品中放射性物质方面的规定？

2 It analyzes data processing method of radioactivity abnormity application effect of reservoir searching with radioactivity method.

总结了油气藏上方放射性异常的规律.

3 They knew that the air outside was poisonous with radioactivity, and they had in their laboratory the only suit in the world that would protect against it.

4 The radioactivity was being swept upwards by the air current and out into the atmosphere.

放射能被气流吹起,进入大气层.

5 Four-digit dials produced before 1963 will use radium luminescent paint, which some fear due to radioactivity.

6 For a long time it was assumed that anything so miraculously energetic as radioactivity must be beneficial.

7 For example, a reader may also capture the temperature or radioactivity of an item.

例如，读取器也可以捕捉物品的温度或放射能。

8 The old guard’s natural radiation sources, the thimblefuls of radium and clumps of radium-beryllium they used to make the discoveries that transformed physics—nuclear disintegration, the neutron, and artificial radioactivity—had had their day.

9 To produce ( radioactivity, for example ) artificially by bombardment of a substance with neutrons, gamma rays, and other particles.

感生通过用中子流 、 r射线线和其它一些粒子流射向一个物质而产生 ( 例如,放射现象 )

10 Plants in the area are now being tested for radioactivity.

当地的工厂正在进行放射性测试。

11 Born Maria Sklodowska in Poland in 1867, she is famous for her work on radioactivity, and was twice a winner of the Nobel Prize.

她于1867年出生在波兰，原名玛丽亚·斯克洛多夫斯卡，以放射性研究而闻名，曾两次获得诺贝尔奖。

12 They had discovered the X ray, the cathode ray, the electron, and radioactivity, invented the ohm, the watt, the Kelvin, the joule, the amp, and the little erg.

13 In March, Enrico Fermi demonstrated that neutrons were the most effective inducers of radioactivity in elements heavier than phosphorus.

14 How is radioactivity measured?

如何测量放射性？

15 Berkeley’s contractor, SCS Engineers, called for an inspector to walk in long, straight lines across César Chávez with a radioactivity detector.

16 Electricity and radioactivity have little in common and do not resonate.

电流与放射性之间几乎没有任何共性,也无法共振.

17 The longer an isotope’s half-life, the more muted its radioactivity, and, therefore, the more difficult it was to detect.

18 With calculations based on linear algebra, the research team demonstrated that -- analogous to radioactivity in atomic nuclei -- a magnetic quiver can decay into a more stable state or fission into two separate quivers.

19 The ability of radiation to induce radioactivity in food is related to its energy.

辐照所引起的使食物具有放射性的能力是与辐照的能量有关的.

20 Curie was the first woman to win a Nobel Prize in 1902 – for the theory of radioactivity that she developed with her husband, Pierre –  and the first person to receive the award twice.

1 放射物

radiation

2 辐射

radiant radiation radiate

3 放射性

hot radioactive radio- radio unstable activity

4 放射

radiant radiate radiation

5 辐射线

ray

6 放射线

radiation

7 辐射能

radiant energy