短語詞組短語metal pipe -wall 金屬管壁pipe -wall thickness 管壁厚度Pipe -wall corrosion 壁厚腐蝕X -ray pipe-wall gauge 射線管壁測量儀;射線管壁厚度差測量儀steel pipe pilecompound soil -nailing wall 鋼管樁復合土釘墻casing -pipe wall 套管壁 返回 pipe wall