乙种射线 yǐ zhǒng shè xiàn

DEFINITIONS

  1. beta ray (electron stream from radioactive decay)

CHARACTERS

乙 yǐ
HSK 5
second; 2nd heavenly stem
种 zhǒng
HSK 3
seed; race, breed; to plant
射 shè
HSK 5
shoot, eject, issue forth, emit
线 xiàn
HSK 4
line, thread, wire; clue