剩餘放射性 shèng yú fàng shè xìng

DEFINITIONS

  1. residual radioactivity

CHARACTERS

剩 shèng
HSK 4
leftovers, residue, remains
餘 yú surplus, excess, remainder
放 fàng
HSK 3
put, release, free, liberate
射 shè
HSK 5
shoot, eject, issue forth, emit
性 xìng
HSK 4
nature, character, sex