Combined with the practice, the paper introduced the construction technology of tunnel waterproof and drainage system.
结合实例介绍了隧道防排水系统的施工技术，重点介绍无钉铺设防水卷材施工方法。
The existing urban drainage system is hereby introduced, including the combined flow and separate flow systems.
阐述了现有城镇排水系统的排水体制，并着重介绍了合流制排水体制和分流制排水体制。
The drainage and irrigation ditch system should be combined with roads and protection forest.
排灌沟系统、道路、防护林三者应尽可结合布设。
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