 |
| |||
| piece rate system | |||
| 分率系统: 29 phrases in 10 subjects |
| Aviation | 4 |
| Earth sciences | 4 |
| Electronics | 8 |
| Geophysics | 2 |
| Mechanics | 1 |
| Oil / petroleum | 1 |
| Project management | 1 |
| Space | 4 |
| Technology | 3 |
| United States | 1 |
|
| |||
| piece rate system | |||
| 分率系统: 29 phrases in 10 subjects |
| Aviation | 4 |
| Earth sciences | 4 |
| Electronics | 8 |
| Geophysics | 2 |
| Mechanics | 1 |
| Oil / petroleum | 1 |
| Project management | 1 |
| Space | 4 |
| Technology | 3 |
| United States | 1 |