双螺杆泵; ,,,,, two screw pump
双曲线式罗杆泵; ,,,,, hyperbolic screw pump
双凸轮旋转活塞泵; ,,,,, twin lobe pump
双涡壳泵; ,,,,, double volute pump
双涡壳泵; ,,,,, double-casing volute pump
双吸泵; ,,,,, balanced suctionpump
双吸泵; ,,,,, double suction pump
双吸螺杆泵; ,,,,, double entry screw pump
双吸液环泵; ,,,,, double entry liquid ring pump
双柱塞泵; ,,,,, double plunger pump
双转子滑片泵; ,,,,, double rotor vane pump
双转子径向活塞泵; ,,,,, two rotor radial piston pump
双作用滑片泵; ,,,,, double action vane pump
双作用滑片泵; ,,,,, t[收起]