您要查找的是不是：
- 双面U形坡口double U-groove
- 单U形坡口single-U groove
- 双U形坡口double-U groove
- 双U形坡口焊接double U groove weld
- 单面复合U形坡口single compound angle groove
- 双面J形坡口double-J groove
- U形河曲内的土地在有这样的弯管的河里的地The land within such a bend of a river.
- 双面坡口接头double groove joint
- U形U-shaped
- 基于非协调强化假定应变单元的U形薄壳渡槽槽身受力分析Analysis of the Stress for U-Shaped Thin Shell Aqueduct Based on Strain Unit of Non-Harmonious Strengthening Supposition
- 双面Ｕ型坡口[化] double U-groove
- U形急转弯a hairpin turn
- 保安链U形夹check chain clevis
- Ｘ形坡口double-V groove
- 管子已被弯成了U形。The pipe had been turned in a U-shaped curve.
- U形梁U-shaped beam
- 双面U型坡口double U-groove
- U形棚U - metal - bracket
- U形环U-loop
- 喇叭形坡口焊接flare welding
