| 1. | The amateur astronomer must consult the exposure meter and not rely on his senses .
业余天文学家必须参照曝光表而不能光靠感觉。 |
| 2. | Photo - electric exposure meters ; scales , calibration
光电曝光计.刻度盘.校准 |
| 3. | Specifications for personal sound exposure meters
个人声暴露计技术要求 |
| 4. | Electroacoustics ; specifications for personal sound exposure meters
电声学.个人测声表规范 |
| 5. | Electroacoustics - specifications for personal sound exposure meters
电声学.个人测声表规范 |
| 6. | Electroacoustics . specifications for personal sound exposure meters
电声学.个人声音暴露计规范 |
| 7. | Let ' s have a look at the exposure meter
我们来查一下曝光表。 |
| 8. | Electroacoustics - specifications for personal sound exposure meters
电声学.人员声音暴露测量表规范 |
| 9. | Specification for direct reading pocket type electroscope exposure meters
直读袖珍式验电器曝光表规范 |
| 10. | Electroacoustics - specifications for personal sound exposure meters ; amendment 1
电声学.专用测声表规范 |
