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Under the synchronous action of the elastically extruding mechanisms, the floating board is pushed upwards at constant force to ensure homogeneous infusion pressure and fluid exhaustion.
浮动板在多个弹力挤压机构的同步 作用下水平向上恒力推移，它既能确保输液压力均匀，而且能将输液袋中的液 体彻底压出排净。
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