返: return出: used as a complement返出端: return side返出液: returning fluid返出泥浆: return of drilling mud返出液旁通: return bypass返出泥浆减少: the mud returns have decreased返出液流通道: return flow path井口返出泥浆: drill-hole returns返出岩屑特别多: there are many return cuttings返出泥浆量忽大忽小: the returns are unstable返稠: after-thickening; afterthickeningg返冲: recoil返驰遮没: retrace blanking返驰线: flyback line; retrace line返驰时间: retrace time