短語詞組短語buried spanning pipe 埋設懸跨buried preinsulated pipe system 預制直埋管道系統(tǒng)buried oil pipe line 地下油管Buried Heating Pipe 供熱管道buried steel pipe 埋地鋼管buried vertical pipe 豎直地埋管buried -pipe system 埋管技術 返回 buried pipe