何谓embeded piping？ "embedded piping’’ is piping (e.g., part of a plant system) that is found in buildings and encased in concrete floors and walls, while ‘‘buried piping’’ is piping (e.g., culvert) that is buried in soils.------------------摘自网络。 一个是埋在混凝土中的，一个是埋在地下的。查看更多
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