表层残余压力对工件的疲劳强度起着有益的作用。
The residual compressive stress is beneficial to fatigue strength.
与柴油机相比较，D 40最高油管压力下降，油管压力波动幅值较大，具有较高的泵端残余压力。
Additionally, compared with diesel fuel, D40 has a lower line pressure, higher pressure fluctuations and has a pump side residual pressure.
因为反应器已经关闭了很长时间，残余热量下降到了一个显著的低水平，因此工厂内部的压力已经稳定，不再需要继续排气。
Because the reactor had been shut down a long time ago, the decay heat had decreased to a significantly lower level, so the pressure in the plant stabilized, and venting was no longer required.
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