In the washing operation, the soft washing drum can bear pressure from water flow and clothes without other supporting parts after being filled with water.
洗涤作业中，软质洗涤桶盛水后，可承受水 流和衣物造成的压力，而不需要其他支持部件；
High water saturated vapour pressure leads to the more possible occurrence of cavitation phenomena in water hydraulic pump, and so as in sliding shoes hydraulic supporting without exception.
水的高饱和蒸汽压力使得水压泵中极易发生气蚀现象，滑靴静压支承也不例外。
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