旋转卡盘使其能在最终扭矩设定时能达到全行程。
Rotate chuck so that full travel can be achieved for final torque setting.
主缸的速度换接与安全行程限制通过行程开关来控制；
Master cylinder for the speed of access restrictions and security through the trip exchanging to control switches.
这个阀瓣总成在阀门全行程中保持与导向装置的接触。
The disc assembly maintains contact with the guides through the full valve stroke.
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