常见例句双语例句Provide Marine Engine Parts, such as Plunger & Barrel, Nozzle, Delivery Valve, Bearing, Sealing Bush, Exhaust Valve, Inlet Valve, Valve Seat, etc.提供各式船用柴油引擎零件，如柱塞、喷油嘴、输油阀、轴承、轴封、出气阀、进气阀等零件。 返回 exhaust nozzle seat