用专用电机带动卷帘中心轴转动，达到卷帘开关，当转动到电机设定的上下限位时自动停止。
Use special motor to drive the rolling center shaft to rotate, to achieve the shutter switch, when the motor is set to the upper and lower limits automatically stop.
当把电梯厢停在合理的楼层后，用带锁开关锁上，再关上门，以防止未经许可的人员使用设备。
After cars are parked appropriately, shut the elevator down with the keyed switch and close the doors to prevent unauthorized personnel from using the equipment.
提供一种按钮开关用弹性部件，当按下按钮开关时可以得到柔和的触感。
An elastic member for a pushbutton switch, providing soft tactile sensation to the operator when it is pushed down.
提供一种按钮开关用弹性部件，当按下按钮开关时可以得到柔和的触感。
An elastic member for a pushbutton switch, providing soft tactile sensation to the operator when it is pushed down.
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