功率就是能量输出的能力，没有能量输出，扭矩如何作功？

来源: alafaya 于 2013-09-18 16:01:02 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.