| 1. | Specification of class a amendments and class b amendments 指明a类修订及b类修订 |
| 2. | Class a and class b amendments to approved development proposals 对核准发展计划作出a类及b类修订 |
| 3. | Specification for ceramic parts , type a A类瓷件技术条件 |
| 4. | Category a - general system development and maintenance services A类一般电脑应用系统的发展及维修服务; |
| 5. | Type a 3a fuse not break for testing 90 minutes at fire temperature of 1000 A类火焰温度1000试验90分钟3a保险丝不断 |
| 6. | Type specification for variable tuning capacitors - type a in electronic equipments 电子设备用a类调谐可变电容器类型规范 |
| 7. | Standard room category a 标准房a类 |
| 8. | Deluxe single room a A类豪华单人间 |
| 9. | Blank detail specification for variable tuning capacitors type a in electronic equipments 电子设备用a类调谐可变电容器空白详细规范 |
| 10. | System category c - - this category comprises all syatems which do not fall into categories a and b C类系统一一不属于a类、 b类的系统。 |