制造鏈?zhǔn)椒磻?yīng)機(jī)器的基本點當(dāng)然是確保每次裂變產(chǎn)生一定數(shù)量的中子，其中一些中子將再次產(chǎn)生裂變。
The fundamental point in fabricating a chain reacting machine is of course to see to it that each fission produces a certain number of neutrons and some of these neutrons will again produce fission.
I constantly see people rise in life who are not the smartest, sometimes not even the most diligent, but they are learning machines. They go to bed every night a little wiser than they were when they got up.
寫作是一種希望的行為。
新生兒具有奇妙的自我調(diào)節(jié)能力。
藝術(shù)是上帝賜予人類的禮物。
The best books are the ones that challenge you.