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1·Two-speed, double-acting, two-way hydraulic output.

双速，双级，双向油压出口。

2·The double-acting variable-vane pump is a new type of variable pump.

双作用式变量叶片泵是一种新型变量泵。

3·This more complicated construction is required in double-acting engines.

这种非常复杂的结构多用于双向做功的发动机。

4·They are available in either double-acting or spring-return configurations.

他们可以以双作用或弹簧返回配置。

5·It can easily be configured as single - or double-acting for rotary actuators.

它可以很容易地配置为单作用或双作用两种形式，从而用于旋转执行器。

6·Four-Way Diaphragm Pilot Valves are for use on all double-acting pneumatic cylinder actuators.

四通 手动控制阀可用于所有气动或液动双作用缸体执行器。

7·Modern Stirling engine can be divided into two main categories-displacer type machines and double-acting machines.

现代的斯特林发动机可分成两大类：置换式发动机和双作用发动机。

8·Which do hydraulic jack's overhaul matters needing attention have? The hydraulic jack is the double-acting plunger type.

液压千斤顶的检修注意事项有哪些？液压千斤顶均为双作用活塞式。

9·Compak Cylinder Actuarors are a versatile rack-and-pinion design and are available as double-acting or spring-return units.

康派克气动装置的设计是通用的、带支架与齿轮齿条传动。

10·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。

双作用

1·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。