短語詞組短語conventional -type lubricant 習(xí)用潤滑油conventional type tanker 常槼油船non -conventional type 異型conventional type gravel packing 常槼礫石充填conventional type form 常槼型線型conventional type clean room 非層流形潔淨(jìng)室conventional type lubricant 常用潤滑油conventional type of ship 普通貨船 返回 conventional type