bottom plunger

• 下冲杆,下模冲

bottom plunger的用法和样例：

例句

1. The hydraulic fluid in the hydraulic chamber and the diaphragm transmit the movement of the plunger to the liquid in the product chamber.
   液压箱工作液和膜片联动，冲杆运动作用传输到箱体工作液中。