back-scattering density
| method
| back scatter density | |
| eng.geol. | 返回散射密度 |
| method | |
| gen. | 法; 标准; 水平 |
| environ. | 方法 |
| hydroel.st. од. | 方法 |
| mech. | 电火花法 |
| |||
| 放射源返回散射密度 | |||
|
back-scattering density : 5 phrases in 3 subjects |
| Electronics | 2 |
| Nuclear physics | 2 |
| Technology | 1 |