压裂泵柱塞密封性能好坏与使用寿命的长短直接影响压裂酸化作业的正常实施，密封不良将带来很大的维护工作量。
Sealing performance and operating life of the fracturing pump directly influence quality of the acidizing operation, and bad seal will result in great deal of maintenance work.
然而从电池使用结果来看，水损耗速度却成为影响密封电池使用寿命的最关键性因素。
However, from the battery, water loss rate has become the most key factors influencing the sealing life.
根据实际工作经验，在系统地分析潜水电泵电缆引入密封装置使用寿命短的影响因素基础上，对其作了结构改进。
According to practical experience, the paper systematically analyses some factors affecting the life of the cable entry sealed device, and then makes some construal improvements.
旋转动密封装置是旋转控制头轴承总成的关键部件，其性能好坏直接影响旋转控制头的使用寿命。
As the key part of the rotary control head's bearing assembly, the capability of the rotary dynamic seal equipment effects on the using life of the rotary control head.
介绍了各种影响阀控式密封铅酸蓄电池寿命及容量的因素，分析了其失效的原因，并相应的对电池的维护提出了一些建议。
This paper analyzes all kinds of reasons that influences the service lifetime and capacity of VRLA battery, gives the reasons of the failure of the battery.
制动钳体锥体密封沟槽的尺寸精度影响着油缸密封圈的使用寿命，油缸活塞的复位精度及整个制动器的制动灵敏程度等；
The dimension accuracy of the sealing slot is closely related to the life time, reset accuracy of the oil cylinder piston and braking sensitivity.
介绍了影响胶管总成密封性能的几个质量问题，以及延长胶管总成密封寿命的几种方法。
The paper describes quality problems which effect the sealing performance of rubber tube assembly and puts forward some methods to prolong the seal's life of rubber tubes.
密封的选用在很大程度上直接影响其使用寿命。
Selection of seal will affect the usage life of seal in great degree.
卡子的安装，对设备的密封和寿命，均有很大影响。
The fixing of jigs attaches much importance to the sealing and the service life of the equipment.
液化石油气(简称LPG)装车泵因压力瞬变和环境影响而工况恶劣，造成该类泵密封使用寿命短，液化气泄漏严重。
The seal life of LPG loading pump is short because of instant changes of pressure severe operating cases caused by and environmental impact. Thus it causes serious leakage of LPG.
盘根密封是(水)龙头的关键环节，其性能直接影响(水)龙头的寿命和钻井速度。
Swivel packing seal assembly is the key of the swivel, whose function directly influences its service life, further more, and affects the drilling speed.
盘根密封是(水)龙头的关键环节，其性能直接影响(水)龙头的寿命和钻井速度。
Swivel packing seal assembly is the key of the swivel, whose function directly influences its service life, further more, and affects the drilling speed.
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