| 1. | Design of a half - wave vibration system for ultrasonic drilling 超声振动钻孔半波长振动系统的设计 |
| 2. | Half - wave dielectric layer 半波介质层 |
| 3. | Half - wave rectification 半波整流 |
| 4. | Half - wave rectifier 半波整流器 |
| 5. | Half - wave current hw 半波电流 |
| 6. | Half - wave retarder 半波延迟器 |
| 7. | Half - wave detector 半波检波器 |
| 8. | Half - wave radiation 半波辐射 |
| 9. | Half - wave conductor 半波导线 |
| 10. | Half - wave potential 半波电位 |