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1.The researches are concerned with alpha rays .
这些研究都是关于阿尔法射线的。收藏指正
2.The particles expelled when the atom explodes are protons, alpha rays or neutrons.
原子爆炸时排出的粒子是质子、a射线或中子。收藏指正
3.Later on, we observed that aluminium and boron, when irradiated by alpha rays do not emit protons and neutrons alone, there is also an emission of positive electrons.
后来，我们观察到，铝和硼经a射线轰击，不仅仅排出质子和中子，还排出正电子。收藏指正
4.With the discovery of the radio-elements, physicists found themselves for the first time confronted with strange substances, minute generators of radiation endowed with an enormous concentration of energy; alpha rays, positively charged helium atoms, beta rays, negatively charged electrons, both possessed of a kinetic energy which it would be impossible to communicate to them by human agency, and finally, gamma rays, akin to very penetrating X-rays.
由于放射性元素的发现，物理学家们第一次发现自己面临许多陌生的物质——许多具有巨大的浓缩能量的、能够发生辐射的细微物质，如射线，即带正电荷的氦原子小射线，即带负电荷的电子。它们具有一种人力不能赋予的动能。还有，射线，它与具有极强穿透力的X射线类似。收藏指正
5.We have shown that it is possible to create a radioactivity characterized by the emission of positive or negative electrons in boron and magnesium, by bombardment with alpha rays.
我们已经展示了人工放射现象的可能性，这种放射现象的特征是用以射线轰击用咄硼和镁中的正电子或负电子。收藏指正
6.Fifteen years later, by bornharding with alpha rays certain of the lighter atoms, nitrogen and aluminium for example, Lord Rutherford demonstrated the ejection of protons, or positively charged hydrogen nuclei;
15年后他用a射线轰击某些较轻的原子，如氮原子和铝原子，向人们展示质子，即带正电荷的氢核的排斥现象。收藏指正
7.In our study of the transmutations with emission of neutrons produced in the light elements irradiated with alpha rays, we have noticed some difficulties in interpretation in the emission of neutrons by fluorine, sodium, and aluminium.
在研究排出中子的蜕变现象(这些中子产生于a射线放射出的轻量元素内部)的过程中，我们注意到，在解释由氟。钠和铝产生的中子排出现象中还有一些难点。收藏指正
8.But the positive electrons produced by aluminium under the action of a source of alpha rays continue to be emitted for some time after removal of the source. The number of electrons emitted decreases by half in three minutes.
但是，在射线动能源作用下铝产生的正电子在动能源撤走后的相当长时间里仍继续被排斥出来，且排出的电子数量在3分钟后减少一半。收藏指正
9.In the course of recent years various artificial transmutations of different types have been discovered; some are produced by alpha rays, others by protons or deuterons, hydrogen nuclei of weight 1 or 2, others by neutrons, neutral particles of weight 1 about which Professor Chadwick has just spoken.
在近几年里，人们发现了各种不同类型的人工蜕变法；有些用a射线，有些用质子或重氢核——原子量为1或2的氢核，还有一些用中子——原子量为1的中性粒子。这方面的内容查德威克教授已经谈过了。收藏指正
10.The radiation, including alpha particles, nucleons, electrons, and gamma rays, emitted by a radioactive substance.
辐射由一种放射性物质发出的辐射，包括α粒子、原子核、电子、和γ射线收藏指正
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