旋钮操作重置为零。
The electrical knob on "reset" position to ensure there is no test subject, and then the cyclone in automatic or semi-automatic position.
将电气旋钮置于“调正”位置进行试车，确认无题目后，再将电气旋置于自动或半自动位置进行工作。
The electrical knob on "reset" position to ensure there is no test subject, and then the cyclone in automatic or semi-automatic position.
将电气旋钮置于“调正”位置进行试车，确认无题目后，再将电气旋置于自动或半自动位置进行工作。
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