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咱们这个电动汽车用啥电池最好? 现在的二十个铅酸电池有两千磅重,只能跑60公里,还只能用三年.

rc5 (brokenheart)
若用镍氢电池,充次电可跑100公里,但要$5000加元才能买一套,5年后也要老化.
(#354541@0)
2002-2-1 -04:00
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