| 1. | Very low frequency electromagnetical receiver
甚低频电磁仪 |
| 2. | Methods of measurement of electrical performance for lf vlf transmiters
低频甚低频发射机电性能测量方法 |
| 3. | Vlf radio navigation system
甚低频无线电导航系统 |
| 4. | Very low frequency radiation
甚低频辐射 |
| 5. | Very low frequency emission
甚低频发射 |
| 6. | Very low frequency antenna
甚低频天线 |
| 7. | Application of vlf - em method in mineral exploration of longtoushan ag - pb - zn deposit
甚低频电磁法在龙头山多金属矿床勘查中应用 |
| 8. | Very - low frequency band
甚低频频带 |
| 9. | Application of very low frequency electromagnetism method in indirectly ore exploration in the chaihulanzi gold deposit
甚低频电磁法在柴胡栏子金矿间接找矿中的应用 |
| 10. | Out in the no - mans land of the international waters are the only means of communication with the submarines , to use radio in the vlf or elf range
在茫茫大洋深处，唯一可用的通信手段就是甚低频或者极低频无线电。 |
