速度曲 线: 88 phrases in 19 subjects |
Agriculture | 1 |
Athletics | 3 |
Aviation | 2 |
Communications | 8 |
Economy | 1 |
Electric machinery | 1 |
Electronics | 1 |
Engineering geology | 1 |
General | 1 |
Geophysics | 2 |
Life sciences | 1 |
Management | 1 |
Medical | 1 |
Oil / petroleum | 3 |
Rail transport | 1 |
Space | 6 |
Sports | 1 |
Technology | 49 |
Wind Energy | 4 |