您要查找的是不是：
- 砼U型渠道concrete U-shaped canal
- “U”型渠道衬砌U-shaped channel lining
- U型渠道混凝土衬砌机U-shaped channel concrete lining machine
- U型混凝土渠道U-shape concrete canal
- 笔型pen type
- U型U shape
- 整型integer
- 运动型motile
- 表型phenotype
- 外型尺寸external dimension
- 大U形渠道U-shape canal
- B型Type B
- 板型mplate
- 大型U形渠道U-shape canal lining with concrete
- U型壳U - shell
- U型槽U -Shape Groove
- U型箍U-ferrule
- U型拉槽U cutting
- U型挡板U stop prate
- U型线U-line
