| 1. | Optical length measuring instruments - basic parameters 光学长度计量仪器基本参数 |
| 2. | Length measuring instruments . plain ring standard grauges 长度测量仪表.普通标准环规 |
| 3. | Calibration specification for length measuring instruments 测长机校准规范 |
| 4. | Length measuring instruments . depth gauges 长度测量仪表.深度规 |
| 5. | Solid scanning length measuring instrument 固体扫描式测长仪 |
| 6. | Correlation length measuring instrument 相关式测长仪 |
| 7. | Laser length measuring instrument 激光式测长仪 |
| 8. | Length measuring instruments . plain plug standard gauges and standard discs 长度测量仪表.普通标准塞规和标准测量盘 |
| 9. | Length measuring instruments . standard reference measuring rods with spherical ends 长度测量仪器.带球型端的标准参照测量杆 |
| 10. | Length measuring instruments . limit gauges and working standards . terminology . shortened designation 长度测量仪表.极限规和工作标准.术语.缩写名称 |