制造链式反应机器的基本点当然是确保每次裂变产生一定数量的中子，其中一些中子将再次产生裂变。
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.
Quality is not an act, it is a habit that we must cultivate every day.
奈奎斯特准则提供了一种图形方法来确定闭环系统的稳定性。
I don't know what's better gettin' laid or gettin' paid.
能够显示的，就不能说。