operational error
| analysis program
| operational error | |
| avia. | 操作误差; 工作误差 |
| analysis program | |
| bridg.constr. | 分析程序 |
| |||
| 操作误差; 工作误差 | |||
|
operational error : 3 phrases in 2 subjects |
| Aviation | 2 |
| Electronics | 1 |