water supply and drainage tunnel
water supply and drainage tunnel
给排水隧道
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Used for industrial and civil architecture roofing, basement, tunnel, tunnels, water supply and drainage pool, water pumping station, etc have waterproof impermeable concrete engineering requirements.
用于工业与民用建筑的屋面、地下室、隧道、巷道、给排水池、水泵站等有防水抗渗要求的混凝土工程。
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