refitting forsecondary water supply facilities
...水设施更新 renewal forsecondary water supply facilities 二次供水设施改造 refitting forsecondary water supply facilities 传统结构 structure of traditionalarchitecture ..
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refitting forsecondary water supply facilities
二次供水设施改造
以上为机器翻译结果，长、整句建议使用 人工翻译 。