| |||
| 船位误差三角形 | |||
| |||
| 误差三角形 | |||
|
error triangle : 15 phrases in 5 subjects |
| Bridge construction | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Oil / petroleum | 2 |
| Surveying | 1 |
| Technology | 10 |
| |||
| 船位误差三角形 | |||
| |||
| 误差三角形 | |||
|
error triangle : 15 phrases in 5 subjects |
| Bridge construction | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Oil / petroleum | 2 |
| Surveying | 1 |
| Technology | 10 |