watersupply and drainage pipes是什么意思 watersupply and drainage pipes怎么读
watersupply and drainage pipes的相关资料
watersupply and drainage pipes的用法和样例
- This paper introduces respectively the detailed rules of the design of the outdoor water supply and drainage pipework and the regulations of the use of the auxiliary structures.
分别介绍了室外给排水管道工程设计的细则及其附属构筑物使用规则。
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