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关注：1
2013-05-23 12:21
求翻译：ventilation is to be balanced when an average period of use of more than two months per year and more than two hours per day is intended.是什么意思？ 待解决
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- 离问题结束还有
ventilation is to be balanced when an average period of use of more than two months per year and more than two hours per day is intended.
问题补充： |
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