During off-peak times, electricity runs a compressor which pumps the air down into the cavern.

在非高峰期，电力驱动一台压缩机，将空气泵入到洞穴中。

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Although this isn't yet done, the idea is that the car owner could get a slight discount on the electricity rate for charging at off-peak times.

虽然这是尚未完成，这个想法是，车主可以得到在离峰时间的电费收取率略有折扣。

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Each tape lasts three minutes and costs 36 cents per minute off-peak and 48 cents at all other times.

每盘磁带持续3分钟，非高峰时间每分钟36美分，其他时间48美分。

《柯林斯英汉双解大词典》

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