| |||
operation requirement; operations requirement | |||
operation requirements | |||
operational requirements | |||
operational requirement |
操作要求 : 41 phrases in 8 subjects |
Aviation | 21 |
Business | 2 |
Economy | 2 |
Electronics | 9 |
General | 1 |
Space | 4 |
Technology | 1 |
Telecommunications | 1 |