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- alpha particle protection 粒子保护
- Aluminium can be transformed,by the capture of an alpha particle and the emission of a proton,into a stable silicon atom. 铝可以通过俘获取粒子、排出质子而被蜕变成一种稳定的硅原子。
- Aluminium can be transformed, by the capture of an alpha particle and the emission of a proton, into a stable silicon atom. 铝可以通过俘获。 粒子、排出质子而被蜕变成一种稳定的硅原子。
- The nature of the nuclear transformation could be firmly established: the aluminium atom,for example,captures the alpha particle and is transformed,after expelling the proton,into an atom of silicon. 核蜕变的性质因此得到确立。例如，铝原子俘获。粒子，并在排出质子后蜕变成硅原子。
- The nature of the nuclear transformation could be firmly established: the aluminium atom, for example, captures the alpha particle and is transformed, after expelling the proton, into an atom of silicon. 核蜕变的性质因此得到确立。 例如，铝原子俘获。 粒子，并在排出质子后蜕变成硅原子。
- alpha particle ionization detector α粒子电离检测器
- When we breathe in radon, the alpha particles emitted in the decay process will cause damage to our lung tissue. 氡气在衰变过程中会放出粒子,当我们吸入氡气时,我们的肺部便会受粒子影响。
- Alpha particles are positively charged helium nuclei obtained from natural radioactive decay. 粒子是从天然放射性蜕变得到的带正电的氦核。
- Millions of alpha particles went straight through the nitrogen gas without touching any of its atoms. But now and then there came a direct hit on a nitrogen nucleus, which split it. 成百上千万的粒子没有碰到氮原子就穿过了充满氮气的试管，但时不时的总有一些粒子会击中并分裂氮原子。
- Over 25 isotopes of Polonium are known, with atomic masses ranging from 192 to 218. Polonium-210, the predominant isotope of polonium, is radioactive and emits alpha particles on decay. 现时已知道钋元素有25个同位素,它们的质量数由192至218,钋210是当中显著的一个同位素,具放射性特徵,会释出放射性阿尔法粒子。
- She subscribes to an animal protection society. 她捐款给一个动物保护协会。
- The researches are concerned with alpha rays. 这些研究是关于阿尔法射线的。
- There wasn't a particle of truth in what he said. 他说的没有一点真话。
- We subscribe to an animal protection society. 我们定期捐款给一个动物保护基金会。
- There's not a particle of truth in her story. 她讲的没有一句实话。
- The young in our society need careand protection. 我们社会的年轻人需要受到关怀和爱护。
- I haven't got one particle of race prejudice. 我没有丝毫的种族偏见。
- There is not a particle of truth in his report. 他的报告没有一点真实性。
- He was paying out half his profits as protection. 他把所得利润的一半交给歹徒作为保护费。
- They lobbied on the environmental protection issue. 他们就环境保护问题在议员中进行了游说。
