反应堆芯 fǎn yìng duī xīn

DEFINITIONS

  1. reactor core

CHARACTERS

反 fǎn
HSK 4
reverse, opposite, contrary, anti
应 yìng
HSK 3
should, ought to, must
堆 duī
HSK 5
heap, pile, crowd; pile up
芯 xīn pith from rush (juncus effusus)