| 1. | These scintillations can be counted by means of a photomultiplier tube and associated electrical devices .
可以用一种光电倍加管以及相应电子装置对这些闪光进行记数。 |
| 2. | Small craft - electrical devices - lightning protection
小艇.电气装置.雷击防护 |
| 3. | When finishing using an electrical device , switch it off
不用电器时，应关掉电源。 |
| 4. | Small craft - electrical devices - lightning - protection systems
小艇.电气设备.避雷保护系统 |
| 5. | Small craft - electrical devices - lightning protection
避雷保护 |
| 6. | Summary of power supply system and electrical device protections based on coal mine
基于煤矿供电系统和电气设备的保护 |
| 7. | Small craft - electrical devices - protection against ignition of surrounding flammable gases
防止点燃周围可燃性气体的保护 |
| 8. | Small craft . electrical devices . protection against ignition of surrounding flammable gases
游艇.电气装置.对周围可燃气体防火保护 |
| 9. | A complete lineup of mechanical devices , electrical devices and manufacturing machinery , etc
全套的机械装置，电力装置，制作机械等 |
| 10. | Small craft - electrical devices - protection against ignition of surrounding flammable gases
小艇.电气装置.周围可燃气体点燃的防护 |
