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注册给排水工程师
42.91 万条内容 · 749 人订阅
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下午最后一题,求关于水喷雾喷头与油池的最大距离。规范规定喷头与保护对象之间的距离离不的大于水雾喷头的有效射程(3.2.3条)。题目给了有效射程4m。我直接选了D,4m。不知对不对
遇到了一点小问题
内容不能包含下列词语
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w503272211
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2009-01-08 22:58:08
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w503272211
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2009-01-08 22:58:08
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