您要查找的是不是：
- 佩利果特U形管Peligot tube
- 佩利果特盐Peligot salt
- u形管u pipe
- 膨胀U形管expansion U-bend
- U形管换热器U-tube heat exchanger
- U形管压力计U-tube manometer
- Ｕ形管hairpin tube
- 保安链U形夹check chain clevis
- Ｙ形管Y-pipe
- 管子已被弯成了U形。The pipe had been turned in a U-shaped curve.
- 鞍形管夹pipe saddle
- 单U形坡口single-U groove
- Ｖ形管蒸发器V-coil evaporator
- U形梁U-shaped beam
- 鞍形管支架saddle pipe support
- U形棚U - metal - bracket
- Ｕ形管热交换器U-tube heat exchanger
- U形环U-loop
- 艾尔斯氏T形管Ayres T-piece
- u形谷u shaped valley
