continuous counter-current operationcontinuous counterflow opration连续: 6年未出事故. There have been no a ...逆流: anarrhea; backset; backwash; ...操作: operate; manipulate; handle逆流操作: countercurrent operation连续逆流浸提: continuous countercurrent leaching下载手机词典可随时随地查词查翻译
