Possibly, the nanotubes are acting as analogues of the natural protein channels that pump water in and out of cells.
纳米管的作用可能类似于天生的蛋白质通道，用来帮助水进出细胞。
Aiming at how to reduce the pump noises, a new type of double acting piston radial pump with lower noises is designed here.
就针对如何降低泵的噪声问题，本人设计出了一种新型的低噪声双作用径向柱塞泵。
Hydraulic dive drilling pump adopts variable hydraulic pump and dynamic cylinder as its power end and its fluid end is identical with the triplex single acting piston pump.
液压驱动的钻井泵采用变量液压泵和动力油缸组成液压钻井泵的动力端；液力端和现在使用的三缸单作用活塞式钻井泵相同。
The noise question of the double-acting vane pump was discussed, and the related ways were proposed to reduce the vane pump noise.
针对双作用叶片泵出现的噪声问题进行探讨，并提出了降低叶片泵噪声的相关途径。
Design contour curves of the stator transition zone is a technical key-problem for the design of double-acting vane pump of high-performance.
定子过渡曲线的设计是高性能双作用叶片泵设计的技术关键。
Each separate arrangement consists of one (1) pump unit connected to two (2) double acting side-launching cylinders and one (1) double acting launching cylinder.
每台系统包括1台油泵连接2台双向液压油缸和一台双向液压推进油缸。
TBW-850 mine mud pump is a horizontal double cylinder double acting piston pump.
TBW- 850煤矿用泥浆泵为卧式双缸双作用活塞泵。
Rongli Mud pump belongs to the modern triplex single acting reciprocating pump.
荣利泥浆泵为三缸单作用往复泵。
The working principle of a new kind of double-acting hand piston pump having two-step output pressure was introduced. The displacement and the output pressure calculating formulae were given.
介绍了一种新型手动双作用双级柱塞泵的工作原理，给出了其排量与输出压力的计算公式。
The electric oil pump is used assistantly for bi-directionally acting jacks or hydraulic cylinders to increase oil output, and is characterized by easy operation and reliable running.
本实用新型用于双向作用的千斤顶或液压缸配用可以提高输出油量，此外，还具有操作方便，运行安全可靠的特点。
The electric oil pump is used assistantly for bi-directionally acting jacks or hydraulic cylinders to increase oil output, and is characterized by easy operation and reliable running.
本实用新型用于双向作用的千斤顶或液压缸配用可以提高输出油量，此外，还具有操作方便，运行安全可靠的特点。
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