您要查找的是不是：
- C、D类焊缝 C and D seam
- D类焊缝 D-type weld
- B类焊缝 Welding seam Categories B
- c语言
- 焊缝 welding line
- 维生素C vitamin(e) C
- 胺类 amine
- C语言程序设计 Programming in C
- 聚类分析 cluster analysis
- 角焊缝 leg of a fillet weld
- 灵长类 Primates
- 果类 fruit
- C＆D curettage and dessication 刮除术和干燥, cystoscopy and dilatation 膀胱镜检查和扩张术, cystoscopy and dilation 膀胱镜检查和扩张术
- 类项 category
- 布类 mercery
- C.D.I C. D. I.
- 第一类 first kind
- C/D比值 cup/disk ratio
- 蔬菜类 greengrocery
- 脂类 FAT
