常見(jiàn)例句雙語(yǔ)例句There also need to be enough fissionable atoms about for the neutrons to bumpinto—in other words, a critical mass.同時(shí)還需要足夠多的、可裂變的原子核用於中子進(jìn)行撞擊,換句話(huà)說(shuō),需要一個(gè)臨界質(zhì)量。Integrated over, and the only way you can make a fission is have material that's fissionable, times the flux over the volume.乘以,你能夠創(chuàng)造出裂變的,唯一的方式就是得到這些材料,它們是可裂變的,乘以流量除以流量。But in nuclearreactors, which contain far less fissionable material, the chain reaction andthe release of energy are carefully controlled.但在核反應(yīng)堆裡,可裂變的材料很少,鏈?zhǔn)椒磻?yīng)和能量的釋放都被小心的控制。權(quán)威例句It is fissionable material and small tactical warheads that are in danger of being stolen or sold, not the well-guarded strategic systems.CENTERFORSECURITYPOLICY: Center for Security Policy Bear over the Barrel’: Putin’s Threats re: U.S. Missile Defenses are Strategically Hollow, Economically UnaffordableJobs' biographer, Walter Isaacson, believed categorically that Jobs was dedicated to destroying Android, denying Larry Page's assertion that Jobs' fissionable rhetoric was for troop morale.ENGADGET: Editorial: A conciliatory Apple would be real innovationSecond, although Russian strategic warheads are well-guarded, large numbers of small tactical nuclear warheads and huge amounts of fissionable material usable for bombs are not, and these create a serious stockpile security problem.CENTERFORSECURITYPOLICY: Center For Security Policy 返回 fissionable