反应堆 (fǎnyìngduī): reactor (nuclear)

Measure Word

一座反应堆 zuò

这座核反应堆已经运行了三十年。

Zhè zuò hé fǎnyìngduī yǐjīng yùnxíng le sānshí nián.

This nuclear reactor has been in operation for thirty years.

memory

反应 = reaction, 堆 = pile/heap. A reactor is literally a 'reaction pile' — which is actually the original English term too (Fermi's 'atomic pile').

反 fǎn

应 yīng

堆 duī