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Cvitamin(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＆Dcurettage 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.IC. D. I.
- 第一类first kind
- C/D比值cup/disk ratio
- 蔬菜类greengrocery
- 脂类FAT
