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1·This means longer rod and piston seal life.

这意味着不再杆和活塞密封寿命。

2·This article briefly gives the design and test results of the piston seal.

并简要地介绍柱塞密封方案的设计和试验结果。

3·The utility model provides a pneumatic conveying device, which includes a cylinder body, a piston rod, a piston seal, air storage Chambers on two sides, a reverser, and each inside passage.

本实用新型提供一种气动输送装置，包括缸体、活塞杆，活塞封，两侧的储气室，换向器，各内部通路。

4·Compact design Balanced for smooth, low vibration operation Suitable for continuous running Heat resistant high performance plastic, Elastomer valves Long-life, high performance piston seal.

设计紧密平滑，低振动操作适用于连续工作耐热的，高性能塑料，高弹性阀长寿命，高性能隔膜密封泵。

5·Thin, circular, steel bands fit into grooves around the piston to seal the bottom of the combustion chamber.

把薄的，圆形的，钢圈放进活塞周围的凹槽以密封燃烧室的底部。

6·Such as whether the bolt is tightened, the piston ring is installed correctly, damaged oil seal is replaced, etc.

譬如螺栓是否拧紧，活塞环安装是否正确，损坏油封是否更换等。

7·Thus, piston rings must be used to provide the necessary seal.

所以活塞环就用来提供必要的密封。

8·Metal elastic force ring inside piston rings can add initial elastic force of the non-metallic piston ring to get expectative seal effect.

在活塞环的内侧设置金属的弹力环增加非金属活塞环的预弹力，可到达预期的密封效果。

9·It is equipped with piston rings to provide a good seal between the cylinder wall and piston.

上面装有活塞环，从而使活塞和气缸壁之间具有良好的密封性。

10·Thoroughly clean all parts exposed to material, including piston barrel, piston head, O-ring, one-way valve, filling head, feeding tank, hopper, etc. Damaged seal shall be immediately replaced.

应彻底清洗所有和物料接触的部件，包括活塞缸、活塞头、O型圈、单向阀、灌装头、料桶、料斗等，发现破裂损伤的密封应及时进行更换。