The neutrons are created in a fission reactor, and slowed to incredibly low speeds by materials known as moderators.

这些中子从核反应堆中产生，在减速剂的作用下减到难以置信的低速。

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In the nuclear reactor field, graphite was used widely as the moderators, the reflectors, the constructive materials of reactor core and the fuel elements in High Temperature Gascooled reactor.

石墨广泛地用做核反应堆慢化材料、反射层材料和堆芯结构材料，在高温气冷堆中还用来做燃料元件。

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In nuclear reactors, graphite is used widely as moderators, reflectors, constructive materials of reactor core and fuel elements in high temperature gas cooled reactors.

石墨广泛地用做核反应堆慢化材料、反射层材料和堆芯结构材料，在高温气冷堆中还用来做燃料元件。

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The neutrons are created in a fission reactor, and slowed to incredibly low speeds by materials known as moderators.

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