输水管道工程回填土压实度应符合设计要求。
The compact density of backfill earth in water transportation pipeline construction has to meet the requirements in design stage.
本实用新型属于给排水管道工程领域，具体涉及一种输水管道的插口结构。
The utility model belongs to the field of water supply and drainage pipeline engineering, and particularly relates to a faucet structure of a water-conveying pipeline.
本实用新型属于给排水管道工程领域，具体涉及一种输水管道的插口结构。
The utility model belongs to the field of water supply and drainage pipeline engineering, and particularly relates to a faucet structure of a water-conveying pipeline.
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