In the night use electricity troughs to charge, also can reduce costs.
在夜间利用用电低谷期进行充电，也可以减少费用。
A crater with such troughs has never been seen before anywhere in our Solar System.
具有如此低谷的陨石坑在我们太阳系内还从未发现过。
A crater with such troughs has never been seen before anywhere in our Solar System.
具有如此低谷的陨石坑在我们太阳系内还从未发现过。
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