A wire is simply a connection in the assembly diagram that indicates which reference is connected to which component.

连线是指组装图中的连接，表示某个引用被连接到某个组件。

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The former tester mostly has the wire connection to test indicator diagram.

以往抽油机示功图测试仪大都采用有线连接方式测试示功图。

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It presents the circuitry diagram of the main loop of electric drive system and the external wire-connection diagrams of PLC and converter.

给出了电力拖动系统的主回路电路图、PLC和变频器的外部接线图。

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