求翻译：开机步骤：开机前确保接通电源和气源，打开电箱电源开关，警示灯亮，伺服电源接通，并按主画面右下角机械手未归零键进行归零操作。是什么意思？

Boot steps: before starting to ensure that power and gas supply, power switch to open the electric box, warning lights, the servo power is turned on, according to the main screen bottom right corner of robot is not zero key to zero.

正在翻译，请等待...

Starting step: Starting front guarantees puts through the power source friendly source, turns on the battery case power switch, the caution light is bright, the servo power source connection, and has not enulled the key according to the host picture right under angle manipulator to carry on the null

Power steps: before the power to ensure that power and gas source, open box power switch, warning lights, servo power is switched on, and press the right corner of the main screen manipulator is not zero-zero operation.