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DISUSE METHOD FOR WATER CATCHING DEVICE SET IN CONDUIT FOR SUPPLYING TOWN GAS
DISUSE METHOD FOR WATER CATCHING DEVICE SET IN CONDUIT FOR SUPPLYING TOWN GAS
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机译:供城市煤气使用的集水装置的废弃方法
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摘要
PURPOSE:To prevent gas leakage due to the damage and so on of a water catching riser without performing the excavation of road surfaces at all, by sealing the whole water catching device by pressing and filling hardening resin into a water catching vessel and the riser through the riser.
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