Pressing operation
液压制动器操作 hydraulic brake operation
压力操作控制 pressure-operated control valve
本发明与现有技术相比，由于采用负压脱水的原理，取代了现有的手工操作以及机械式的直接压制脱水。
Compared with the prior art, the invention replaces the existing manual operation and mechanical direct pressing dewatering by the principle of dewatering by negative pressure.
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