The tool bombards the formations withneutrons and measures both the inelastic and capture gamma ray spectra that results.
利用中子轰击地层，测量由此产生的非弹性和俘获伽马射线谱。
2
That compresses the plutonium while it is simultaneously bombarded withneutrons from a trigger made of polonium, and thus begins the second stage.
这个过程能压缩钚，并与此同时钚也会受到由钋组成的触发器散发出的中子的轰击，这样就引发了第二个阶段。
3
Most of them did not fit into the models physicists had at that time, that matter consisted of atoms withneutrons and protons in the nucleus and electrons round it.