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關注：1
2013-05-23 12:21
求翻譯：The greatest saving effects are achieved by lighting management systems that harness incident daylight. With them, artificial lighting is activated or slowly and steplessly raised only when the daylight available is not sufficient – and it can be deactivated completely when there is enough natural brightness around.是什么意思？ 待解決
 懸賞分：1
- 離問題結束還有
The greatest saving effects are achieved by lighting management systems that harness incident daylight. With them, artificial lighting is activated or slowly and steplessly raised only when the daylight available is not sufficient – and it can be deactivated completely when there is enough natural brightness around.
問題補充： |
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