Electric Main 主电线
Electric main connection 电气主接线
electric main connection line 电气主接线
electric main wire 电气主接线
electric main wiring 电气主接线
electric main equipment 电气主设备
Electric cars have one main moving part: the motor.
电动汽车有一个主要的运转部件：马达。
The advantage is that these smaller plants can be located off the main electric grid to supply rural customers.
其优点在于这些更小的电站可以位于主电网之外，提供给农村的用户。
If electric wiring is shorting out, shut off the electric current at the main box.
如果电线短路，请在主控箱切断电源。
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