The control mechanism is connected to the evacuation hole of the vacuum cup and is used for controlling the vacuum opening or vacuumclosing of the vacuum cup.
控制机构连接至真空吸盘的抽真空孔，用以控制真空吸盘的真空开启或真空关闭。
2
A beam-line vacuum interlock protecting system consists of fast-closing valve, gate valves, sensors and control system.
光束线真空联锁保护系统主要由快阀、门阀、压力传感器(真空规)和控制系统等组成。
3
It's concluded that the contact closing force as a part of the original power for closing is also an important factor affecting the closing bouncing of vacuum circuit breaker.