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- alpha particle spectrum α粒子谱
- 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。
- In this paper we presented the variation of atmospheric aerosol optical thickness and Angstrom exponent a (which symbolizes the width of particle spectrum) in Beijing in recent three years. 作者给出了近3年北京地区大气气溶胶光学厚度和表征粒子谱宽度的Angstrom指数(a)的变化情况.
- 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 particle ionization detector α粒子电离检测器
- 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。
- Using the data observed by an instrumented aircraft during a dust storm originated from thewestern part of Inner Mongolia of China on 10 June 1983,the particle spectra,dust content andthe CCN concentration are analysed. 根据对一次在阿拉善沙漠及其附近地区发生的沙尘暴天气下大气沙尘粒子的飞机观测资料,分析了3600m 以下各层的沙尘含量、粒子谱、云凝结核浓度;
- 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。
- The survey covered a broad spectrum of topic. 这本简史涉及的话题范围很广。
- 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。
- There's not a particle of truth in her story. 她讲的没有一句实话。
- The precipitation particle spectra instrument 降水粒子谱仪
- Red and violet are at opposite ends of the spectrum. 红色和紫色位于光谱相对的两端。
- 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。
