| |||
| étude technique | |||
|
technical studies : 11 phrases in 8 subjects |
| Agriculture | 1 |
| Economics | 1 |
| Education | 2 |
| General | 3 |
| Industry | 1 |
| Materials science | 1 |
| Name of organization | 1 |
| United Nations | 1 |
| |||
| étude technique | |||
|
technical studies : 11 phrases in 8 subjects |
| Agriculture | 1 |
| Economics | 1 |
| Education | 2 |
| General | 3 |
| Industry | 1 |
| Materials science | 1 |
| Name of organization | 1 |
| United Nations | 1 |