短语词组短语oil drip tray 滴油盘OIL DRAIN TRAY 接油槽oil pan tray 油盘槽oil collect tray 集液槽oil control tray 挡油盘oil drain tray group 排油槽组件crankcase oil tray 油底壳crosshead oil tray 十字头油槽 返回 oil tray