• 1. open-wire line: 开环控制 | 明线
• 2. open wire line: 架空眠 | 开放式系统作业 | 架空线路 | 明线
• 3. Aerial Open Wire Line: 架空明线线路

更多释义

• 1.If do big specification line, two outlet open, so that strengthen the cooling effect of the copper wire.
  如果做大的规格线，两个出水口都要打开，这样加强铜线的冷却效果。
  dict.yoduao.com
• 2.Fire hydrant manual warning button besides holding wire, but also needs to open the pump reply line to the pump house.
  消水栓脚动报警按钮除旌旗灯号线中，借需求启背鲐问线至泵房。
  dict.yoduao.com

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