摆动油缸机构
Rocker oil cylinder mechanism
饱和汽缸油
saturated steam cylinder oil
闭路油缸控制回路
loop cylinder control circuit
closed loop cylinder control circuit
闭模油缸
hydraulic cylinder for mould closing
变量活塞油缸
Cylinder with variable piston
变速油缸阀体
shift cylinder valve body
变速油缸滑阀
shift cylinder valve spool