| |||
| 有效期; 有效期限 | |||
|
time of validity : 10 phrases in 7 subjects |
| Business | 3 |
| Finances | 1 |
| International trade | 2 |
| Nautical | 1 |
| Oil / petroleum | 1 |
| Project management | 1 |
| Technology | 1 |
| |||
| 有效期; 有效期限 | |||
|
time of validity : 10 phrases in 7 subjects |
| Business | 3 |
| Finances | 1 |
| International trade | 2 |
| Nautical | 1 |
| Oil / petroleum | 1 |
| Project management | 1 |
| Technology | 1 |