direct observation
| electron microscope
| direct observation | |
| auto. | 直接观察 |
| econ. | 直接观察法 |
| eng.geol. | 直接观测 |
| met. | 直接观察 |
| electron microscope | |
| desert. | 电镜 |
| IT од. | 电子显微镜 |
| |||
| 直接观察测量 | |||
| 直接观察法 | |||
| 直接观测 | |||
| 直接观察 | |||
| 直接调查 | |||
|
direct observation : 11 phrases in 5 subjects |
| Bridge construction | 1 |
| Metallurgy | 2 |
| Oil / petroleum | 1 |
| Technology | 6 |
| Wind Energy | 1 |