短語(yǔ)詞組短語(yǔ)Wall thickness of pipe 管材壁厚thickness of steel pipe 鋼管壁厚thickness of pipe wall 管壁厚Thickness of absorbance pipe 吸熱管壁厚protective thickness of steel pipe 鋼管保護(hù)厚度thickness of pipe end increasing 管端增厚Thickness of the steel pipe 鋼管厚度Thickness Design of Ductile -Iron Pipe 球墨鑄鐵管的厚度設(shè)計(jì) 返回 thickness of pipe