船泊等建筑物的外壁维修，清洗油漆，深井作业等。
The ship anchors and so on building's outer wall services, the clean paint, the deep well work and so on.
特别是在深井作业中及硬地层，容易发生失效事故，其中疲劳失效是主要的失效形式。
Failure accident are liable to occur in the deep well and hard formation. Fatigue faliure is the main faliure form.
介绍了制氮车的工作原理及其在塔里木油田低压深井排液作业中的应用情况和使用效果。
The article briefly introduced the nitrogen-making car's work principle and the applied circumstances and effect of the discharging liquid operation of the low-pressure deep well in Tarim oilfield.
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