9秒由硼和银制成的控制棒被降下，减慢反应堆堆芯内的核链式反应。
9 SEC the control rods, made of boron and silver, are lowered, which slows down the nuclear chain reaction within the core.
该计划致力于武器化：虽然制造在核原料中引发链式反应的设备是一件高精细度的工作。
That programme was about “weaponisation”: the fiddly business of making a device that can set off a chain reaction in nuclear fuel.
该计划致力于武器化：虽然制造在核原料中引发链式反应的设备是一件高精细度的工作。
That programme was about “weaponisation”: the fiddly business of making a device that can set off a chain reaction in nuclear fuel.
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