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關注：1
2013-05-23 12:21
求翻譯：電能是由一次能源經加工轉換而成的能源，稱為二次能源。是什么意思？ 待解決
 懸賞分：1
- 離問題結束還有
電能是由一次能源經加工轉換而成的能源，稱為二次能源。
問題補充： |
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2013-05-23 12:21:38
Electricity by primary energy has been converted from the energy, known as secondary energy.
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2013-05-23 12:23:18
正在翻譯，請等待...
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2013-05-23 12:24:58
The electrical energy is by an energy the energy which transforms after the processing becomes, is called the secondary energy sources.
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2013-05-23 12:26:38
Power is energy processed at once converted into energy, called secondary energy.
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2013-05-23 12:28:18
正在翻譯，請等待...
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