电磁铁或手动操作，按下并旋转手动操作钮可实现手动状态锁定。气动弹簧复位、机械弹簧复位、电磁铁操作复位。
Solenoid or manual operation, press the button and rotate manual operation can achieve a state of lock manually. Reset pneumatic spring, mechanical spring reset, reset electromagnet operation.
掘进机是煤矿巷道机械化掘进中最重要的设备，目前仍由司机手动操作。
Tunneling machine is the most important device in mechanical tunneling of coal mine roadway, but it is operated by driver with hands.
机械式铁线调直切断机，手动设定调直切断长度，操作与维护都比较简单。
"Traditional Mechanical Model Automatica Wire Straightening and Cutting Machine", need to set the straightening and cutting length manually, then the machine will do that automatically.
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