The control mechanism is connected to the evacuation hole of the vacuum cup and is used for controlling the vacuum opening or vacuum closing 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。

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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。

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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.

提出作为合闸原动力一部分的触头自闭力也是影响真空断路器合闸弹跳的一个重要因素。

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French diplomacy may help to help fill the vacuum of the closing months of the Bush Administration.

BBC: Sarkozy's plan: Showy or astute?

In a doomsday scenario, extremist Islamic factions in Egypt, Tunisia and even Jordan could come to power, killing critical diplomatic and military relationships, forcing the closing of the Suez Canal and allowing Iran fill the vacuum.

CNN: The Sweep: The risk of democracy in the Middle East