放射现象

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）

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

因此放射现象可以监视每一个核的裂变，因此放射现象提供了一个极灵敏的分析方法。

Radioactivity provides an extremely sensitive method of analysis since disintegration of individual nuclei are monitored .

柏克瑞尔发现世界上存在着这种奇怪的放射现象。

Becquerel had discovered the fact that this strange radiation existed in the world .

放射现象被认为是极度危险的。

Radioactive phenomena are considered very dangerous .

星星闪光的奥秘初步被揭开是在不久前的1899年：放射现象

The first clue to the origin of starlight happened as recently as 1899 : radioactivity .

我们因此获得了一种通过排斥正电子表现出来的真正的放射现象。

Here , therefore , we have a true radioactivity which is made evident by the emission of positive electrons .

此外，首次观察到了高度规则的放射状共生现象。

Meanwhile , very regular radiated structure is observed for the first time .