internal pump gear 油泵内啮合齿轮

internal gear pump 内啮合齿轮泵 ; 内接齿轮泵

pump with internal bearing 内轴承泵

internal-packed type piston pump 内密封式活塞泵 ; 内弥缝式活塞泵 ; 内部填塞式活塞泵

Reactor internal pump 反应堆堆内泵

internal pump mixture 内泵压混合料

internal gear rotary pump 内齿轮回转泵 ; 内啮合齿轮泵

quiet internal gear pump 低噪声内啮合齿轮泵

internal combustion water pump 内燃水泵