planning permit of construction engineering 建设工程规划许可证 reconstruction of old area 旧区改造 property trust 物业信托 ..
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reconstruction of old residential area 旧区改造
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This paper discusses on existing problems and reconstruction principles of pipe-line in old urban area and , from the angle of implement, expounds reconstruction forms of pipe-line in old urban area.
就旧城区排水管网存在的问题及改造的原则进行了论述，并从实施的角度阐述了旧城区排水管网改造的形式。
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