SRI surfaces need to be cleaned how frequently to maintain good reflectance, as

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发表于 2012-8-4 20:08:21 |只看该作者 |倒序浏览

试卷: LEED AP ID+C记忆卡 B[查看]
SRI surfaces need to be cleaned how frequently to maintain good reflectance, as required by LEED?

本题解释:
At least every two years.

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SRI surfaces need to be cleaned how frequently to maintain good reflectance, as

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