短語詞組短語conventional -type lubricant 習用潤滑油conventional type tanker 常規(guī)油船non -conventional type 異型conventional type gravel packing 常規(guī)礫石充填conventional type form 常規(guī)型線型conventional type clean room 非層流形潔凈室conventional type lubricant 常用潤滑油conventional type of ship 普通貨船 返回 conventional type