 |
| |||
| 变密度 | |||
| 可变密度 | |||
| |||
| 变密度记录剖面 | |||
| variable density: 45 phrases in 8 subjects |
| Aviation | 2 |
| Construction | 3 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Geophysics | 12 |
| Oil / petroleum | 5 |
| Space | 2 |
| Technology | 19 |
| Wind Energy | 1 |
|
| |||
| 变密度 | |||
| 可变密度 | |||
| |||
| 变密度记录剖面 | |||
| variable density: 45 phrases in 8 subjects |
| Aviation | 2 |
| Construction | 3 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Geophysics | 12 |
| Oil / petroleum | 5 |
| Space | 2 |
| Technology | 19 |
| Wind Energy | 1 |