It is not needed to punch the tubing when this sensor is used to measure the internal pressure, which guarantees the oil string with higher mechanical strength and keeps Wells in normal production.

由于该传感器不需要在油管柱上打孔取压，从而保证了油管柱有较高的机械强度，在测量时不影响油气井的正常生产。

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Felt pad is used after the punch processing sheep blankets made of sealing washer. Having a sealing, oil storage, such as earthquake action.

毛毡垫是采用羊毛毡经过冲床加工制作而成的密封垫圈。具有密封，储油，防震等作用。

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Simulating the punch-press operation conditions, evaluation methods were established to test the formulated pressing oil.

参照冲压工况使用条件建立了模拟评定试验方法。

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The owners of private jets in Nigeria typically range from corrupt high-flying politicians to oil magnates, business moguls and a few clergymen, the Punch article reports.

FORBES: Wealthy Nigerians Spend A Reported $6.5 Billion On Private Jets