测地线 : 95 phrases in 15 subjects |
Architecture | 1 |
Aviation | 3 |
Bridge construction | 1 |
Construction | 2 |
Drilling | 1 |
Earth sciences | 8 |
Electronics | 2 |
Engineering geology | 3 |
General | 6 |
Geology | 1 |
Geophysics | 3 |
Oil / petroleum | 10 |
Space | 7 |
Technology | 45 |
United Nations | 2 |