| |||
| 双对照 | |||
| 仔细检查 | |||
| 双将 | |||
| 双重核算 | |||
| 重复校核 | |||
| 双重监视; 双重核算制 | |||
| 复核; 双重保险 | |||
| 反复核对 | |||
| 重复检验; 双重校验; 双重校对 | |||
| 双重格子; 复查; 双格子花纹; 双格子 | |||
| |||
| 再次确认 | |||
| 复式检查 | |||
| 复核; 复查 | |||
|
double- check : 20 phrases in 10 subjects |
| Air defense | 1 |
| Automobiles | 3 |
| Aviation | 1 |
| Compressors | 1 |
| Construction | 1 |
| General | 1 |
| Mechanics | 1 |
| Polygraphy | 1 |
| Public security | 1 |
| Technology | 9 |