For a person, walking is much more energy-efficient than running



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送交者: HunHunSheng 于 2005-10-13, 15:31:15:

回答: 为什么有些油电混合车开市内反而比开高速公路巡航还省油 由 4U4luC2 于 2005-10-13, 14:29:20:

Wlaking 5 miles consume much less calory than running 5 miles. Human is efficient at slow movement.

electric motor is very efficient at slow speed
but a gas engine is very ineficient at low speed



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