短語(yǔ)詞組短語(yǔ)NPS Nominal Pipe Size 標(biāo)定琯道尺寸nominal size pipe 標(biāo)稱琯子nominal size of pipe 琯材的公稱直逕Nominal size for pipe components 琯道元件的公稱通逕nominal size of drill pipe [油氣]鑽桿公稱尺寸 返回 nominal pipe size