词汇	trip casing spear
释义	trip casing spear 套管打捞筒
随便看	provisionality provisionality difference provisional job provisional judgement provisional judgment provisional legislative council panel system provisional letter of allotment provisional licence provisional licences provisional license provisional ligature provisional light provisional limit provisional liquidator provisional marine air group provisional marker provisional matrix provisional maximum tolerable daily intake provisional measure provisional measures provisional measuret provisional mesoderm provisional metering information provisional method Provisional Military Advisory Group