查看完整版本 : 咩叫input energy??

chunyin826 2012-6-6 02:53 AM

咩叫input energy??

咩叫input energy??
(詳盡d, THX)

Ron~ 2012-6-7 05:37 PM

the total energy enters to a system
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查看完整版本: 咩叫input energy??