叶栅汽蚀绕流时所产生的汽穴不仅使流场发生了变化,而且其未知的形状使流场的求解变得十分困难。
A cavitation bubble in a cascade not only changes the flow field of the cascade, but also makes it difficult to calculate the flow field because of its unknown shape.
在板坯轧制过程中,由于某些因素的影响,使板坯在粗轧阶段的工艺参数发生变化,如冷却不均匀,使板坯两侧存在温度差、板坯具有楔形及在咬入过程中偏离轧辊中心线等,都会使板坯产生侧弯现象。
In bar rolling process, the technical conditions of roughing may change and make camber occurred, for example, different temperature at both bar side, bar wedge and off-center in biting.
As it does that it changes the volume of the heart and gives the - creates the pressure that moves blood around your body, so it has that muscular system.
这使心脏的体积发生变化,产生了足以使血液流遍全身的压力,这就是心脏中有肌肉系统的原因
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