Warning: file_put_contents(): Only 0 of 5780 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/001308.com/index.php on line 55 日本宅男午夜免费永久网站,人妻av乱片aV出轨中文字幕
This chart gives you a summary of some of the critical thermal-neutron cross sections of important fissile and fertile nuclides. 這個圖表給你們一個重要的,可裂變和可轉(zhuǎn)換核素的,一些臨界熱能中子橫截面的總結(jié)。
We can then look at uranium 238 which has a relatively low absorption thermal energy range and essentially has no fission cross section which is why we call uranium 238 a fertile atom. 我們能看看鈾238，它有一個,相對低的吸收熱能范圍,基本上沒有裂變橫截面,那就是為什么我們稱鈾238為可轉(zhuǎn)換核素。