conqueror

What is energy?

[ 本帖最後由 鍾倩怡 於 2006-11-10 11:30 PM 編輯 ]

conqueror

引用:

原帖由 鍾倩怡 於 2006-10-15 11:20 AM 發表
In general, the concept of energy refers to "the potential for causing changes." The word is used in several different contexts. The scientific use has a precise, well-defined meaning, wh ...

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