| 1. | Pre - engineered dry chemical extinguishing system units
预制干粉化学灭火系统设备 |
| 2. | Standard for hydrocarbon clean agent extinguishing system units
卤化烃清洁剂灭火系统装置标准 |
| 3. | Halogenated agent extinguishing systems units
卤化剂灭火系统设备 |
| 4. | Digital alarm communicator system units
数字警报传输系统设备 |
| 5. | Household burglar alarm system units
家用防盗警报系统设备 |
| 6. | Household burglar - alarm system units
家用防盗警报系统装置 |
| 7. | 2 . 12ch simultaneous interpretation . 3 . automatic numbering on system units
2 .多路通道采用同一发射单元 |
| 8. | Household fire warning system units
家用火灾报警系统装置 |
| 9. | Household fire warning system units
家用火警系统装置 |
| 10. | System cabinet : see system unit
机箱:参照系统单元 |
