The opening and the closing of the gate valve are realized by a manual pump; the past bulky gate valve with a hand-operated screw rod is replaced.
闸阀的开启和关闭靠手动泵来实现，取代了过去手摇丝杠的笨重闸阀。
A bailer or manual water pump is not required for any multi-hull vessel that has subdivided multiple-sealed hull construction.
水斗和水泵对于多船体或者多舱的船不是必须的！
It is an integral entity which is made up of a manual corrugated pipe or sleeve piston pump and a flow controlling valve. It is suitable for liquid suction, pressing and siphoning.
本发明公开一种用于输送液体的手动泵阀管，它是由一个手动波纹管或套筒活塞泵，分别同一个流量控制阀门组合为一体。
A check valve (3) can prevent the natural chemical absorption water head of the water head when the manual pump or the mechanical pump stops to work.
止回阀(3)起当手压或机械泵停止工作时能阻止水位差的自然吸药。
The manual cold noodle making machine comprises the manual oil pump (picture 1), a machine body (picture 2), a flour cylinder (picture 3) and working solution (picture 4).
手动冷面机包括：（图号1）手动油抽、（图号2）机体、（图号3）面缸、（图号4）工作液组成。
This isocratic system consists of a high pressure solvent delivery pump, an UV/VIS detector, a manual injection valve, and a solvent tray, a column and a Chromatography Workstation.
整套系统由高压输液泵、检测器、进样阀、溶剂托盘、色谱柱、工作站软件等组成；
Electromagnetic dosing pump with MANUAL regulation by means of a potentiometer.
电磁，加药泵，带手动调节分压计(电位计)。
A manual cold noodle making machine is characterized in that a manual oil pump is used as a power source, and edible oil is used as a working solution medium.
手动冷面机其特征在于手动油抽为动力源，食用油为工作液介质。
A manual cold noodle making machine is characterized in that a manual oil pump is used as a power source, and edible oil is used as a working solution medium.
手动冷面机其特征在于手动油抽为动力源，食用油为工作液介质。
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