电机效率高速和低速几乎一样，但汽油发动机不同转速的效率相差很大，用变速箱也只是弥补一些

来源: 大洋bridge 于 2025-10-21 12:20:49 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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