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1.The voltage supply line is crucial for the operation of the power grid.
电压供应线对于电网的运行至关重要。
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2. The engineer installed a new voltage supply line to improve the reliability of the power supply.
工程师安装了一个新的电压供应线，以提高电力供应的可靠性。
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3.The voltage supply line was damaged during the storm, which affected the entire area's power supply.
暴风雨期间电压供应线受损，影响了整个地区的电力供应。