玛丽写信时，孩子们都在外面玩。（线线重合）
When Mary was writing a letter, the children were playing outside.
电缆式连接控制线使控制器和重合器之间的连接非常方便。
Threaded style connectors make cable connection between control and recloser extremely easy.
电缆式连接控制线使控制器和重合器之间的连接非常方便。
Threaded style connectors make cable connection between control and recloser extremely easy.
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