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- Aluminium can be transformed,by the capture of an alpha particle and the emission of a proton,into a stable silicon atom. 鋁可以通過俘獲取粒子、排出質子而被蛻變成一種穩定的硅原子。
- Aluminium can be transformed, by the capture of an alpha particle and the emission of a proton, into a stable silicon atom. 鋁可以通過俘獲。 粒子、排出質子而被蛻變成一種穩定的硅原子。
- measurement of gross alpha activity in non-saline water (thick source method) 在不含鹽的水中總嶧疃炔飭: 厚源法
- 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. 核蛻變的性質因此得到確立。例如，鋁原子俘獲。粒子，並在排出質子后蛻變成硅原子。
- Method: Phenylalanine was absorbed with particle activated carbon. 方法:採用顆粒活性炭吸附苯丙氨酸。
- 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. 核蛻變的性質因此得到確立。 例如，鋁原子俘獲。 粒子，並在排出質子后蛻變成硅原子。
- alpha particle ionization detector α粒子電離檢測器
- When we breathe in radon, the alpha particles emitted in the decay process will cause damage to our lung tissue. 氡氣在衰變過程中會放出粒子,當我們吸入氡氣時,我們的肺部便會受粒子影響。
- Alpha particles are positively charged helium nuclei obtained from natural radioactive decay. 粒子是從天然放射性蛻變得到的帶正電的氦核。
- The goods are to be sold by the gross. 這些貨物是要躉批出售的。
- 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. 成百上千萬的粒子沒有碰到氮原子就穿過了充滿氮氣的試管，但時不時的總有一些粒子會擊中並分裂氮原子。
- 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. 現時已知道釙元素有25個同位素,它們的質量數由192至218,釙210是當中顯著的一個同位素,具放射性特徵,會釋出放射性阿爾法粒子。
- Using Charged Particle Activation Analysis (CPAA), the concentration of oxygen in a thin boron target was determined, and the method of analyzing the thin unknown sample in comparison with the thick standard was studied. 應用帶電粒子活化分析法(CPAA)對硼薄膜中的氧含量進行了測量,並對利用厚標樣分析薄樣品中的元素含量的比較測量方法進行了研究。
- He made a gross mistake but refused to admit it. 他犯了嚴重的錯誤卻不肯承認。
- He regretted very much having said something gross. 他講了一些粗話,對此非常後悔。
- The gross for the year was $60,000. 年總收入為六萬美元。
- The researches are concerned with alpha rays. 這些研究是關於阿爾法射線的。
- The office has been humming with activity. 辦公室一直忙著搞活動。
- There wasn't a particle of truth in what he said. 他說的沒有一點真話。
- The threat of war has depressed business activity. 戰爭的威脅使經濟蕭條。
