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.

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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.

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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.

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