单项选择题

接地装置英语专业术语是（）。

A.grounding equipment
B.grounding conductor
C.grounding connection
D.grounding grid

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单项选择题

A.Electrical Engineering
B.Electrical Engineer
C.Electric Engineering
D.Electric Engineer

单项选择题

A.Electric equipment installation
B.Electrical equipment installation
C.Electric equipment install
D.Electrical equipment install

单项选择题

A.首先关闭主气门，待逆功率继电器动作后，再跳开发电机断路器并灭磁
B.首先跳开发电机断路器并灭磁，再关闭主气门
C.待逆功率继电器动作后，跳开发电机断路器并灭磁
D.首先关闭主气门，再跳开发电机断路器并灭磁