ultrasonic reflection
| technique
| ultrasonic reflection | |
| space | 超声反射 |
| technique | |
| exhib. | 技法 |
| gymn. | 手法; 操作法 |
| hydroel.st. | 技能; 工艺; 工程 |
| manag. | 方法论 |
| met. | 方法 |
| sport. | 技巧 |
| tech. | 技术 |
| |||
| 超声反射 | |||
|
ultrasonic reflection : 5 phrases in 2 subjects |
| Geophysics | 1 |
| Technology | 4 |