[das] 回
reverse current, back current, backwash, back stream, return flow
[das]
反
的
。
。逆
。反响。
backwash
[der]
① 回
。逆
return flow, backwash, back stream
② 反向电
。逆
。回
。 back current, return current, reverse current
③ 再带走,再曳行 re-entrainment
[die] 反
，回
back stream, reflow, return flow, backlayering, backflow, reverse flow, backwash
