This allows the connection to be made without a wrench, using a nut equipped with a hand wheel.

这使得不用扳手，而是使用带手轮的螺母就可以进行连接。

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Valves with this option have a hand wheel mounted on top of the actuator for manual valve operation.

配置这种备选件的阀门在执行器顶部安装一个手轮用于手动阀门操作。

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When a hand wheel is toggled, the nut connecting plate drives the hand piece of the suspended type submerged arc welding machine and a wire reel bracket to move axially.

拨动手轮时，螺母连接板带动悬挂式埋弧焊接机头与焊丝盘支架轴向移动。

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