由于躺在静止的平面上持续产生的压力，疼痛性溃疡会伴随大面积皮肤脱落，有时露出肌肉，甚至骨头。
Brought about by the constant pressure of lying on a stationary surface, painful ulcers can involve substantial skin loss, sometimes exposing muscle and even bone.
深部土静止土压力的计算与预测是煤矿深井建设设计与施工中的理论与技术难题之一。
One of the theoretical and technical puzzle of deep coal mine design and construction is the computation and prediction of static earth pressure.
若火焰以稳定速度在均匀的静止云雾中传播，则压力波后的流场是自相似的。
If the flame is propagating at steady speed in static and homogeneous clouds, flow field just behind the pressure waves is self-similar.
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