大直径内螺纹铣削加工
large diameter internal thread milling
大直径径向渗透率仪
full diameter radial permeameter
大直径螺旋焊管
large-diameter spiral welded pipe
大直径螺旋钻孔桩
large diameter bored pile
大直径直缝焊管
Large－ sized straight weld pips
large-diameter butt welded pipe
large diameter longitudinal welded pipe
Large-sized straight welded tube
低转速大直径螺桨
large slow-turning propeller
螺纹大径公差符号
crest diameter tolerance symbol
统一标准小直径螺纹
unified miniature screw thread
统一标准小直径螺纹规
unified miniature screw thread gauge
表面最大直径
The greatest surface diameter
插入式大直径钢圆筒
sink-in large diameter steel cylinders
插入式大直径圆柱壳结构
thin-walled embedded large-diameter cylindrical shell structure
超长大直径群桩
extra long and large diameter pile groups
extra-long large-diameter piles group
extra-long large diameter pile group