以下为句子列表:
英文: At 400 kilovolts, a standard value for long-distance transmission, an alternating current 30 metres (100 feet) from the ground has a fortieth of the loss of a similar cable at ground level.
中文: 在远距离传输的标准电压400千伏下,电缆离地30米(100英尺)时的电量损耗是同样电缆在地面时损耗的四十分之一。
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