sap pressure

• 液压

sap pressure的用法和样例：

例句

1. The four-way valve releases oil pressure evenly to the pulleys.
   四通阀对滑轮均匀的释放液压。
2. The reverser can only be deployed on the ground with hydraulic pressure available.
   反推器只能够在地面液压系统有效时打开。