| 1. | This light can be used to illuminate a glass bulb containing sodium vapour . 可以用这种光来照射一个含有钠蒸气的玻璃泡。 |
| 2. | Low pressure sodium vapour lamps - performance specification 低压钠蒸气灯.性能规范 |
| 3. | Low pressure sodium vapour lamps - performance specifications 低压钠蒸汽灯.性能规范 |
| 4. | Low pressure sodium vapour lamps - performance specifications 低压钠蒸气灯.性能规范 |
| 5. | High pressure sodium vapour lamps ; amendment 10 高压钠蒸气灯.第10次修订 |
| 6. | High - pressure sodium vapour lamps ; amendment 8 高压钠蒸汽灯.补充件8 |
| 7. | High - pressure sodium vapour lamps ; amendment 9 高压钠蒸气灯.修改件9 |
| 8. | High - pressure sodium vapour lamps ; amendment 7 高压钠蒸气灯.补充件7 |
| 9. | High - pressure sodium vapour lamps ; amendment 6 第6次修改 |
| 10. | High - pressure sodium vapour lamps ; amendment 5 第5次修改 |