 |
| |||
| 视察教具; 助视器材 | |||
| 视觉辅助设备 | |||
| ★ 助视器; 目视导航设备 | |||
| 直观教材; 目视助航设备; 视觉航标 | |||
| 直观教具 | |||
| |||
| 〔支〕目视的辅助手段; 目视的辅助手段 (利用眼睛观察的方法来进行指导或帮助理解问题用的辅助手段，不能作为尺寸性权威依据) | |||
| 直观教具 | |||
| ★ 视觉航标 | |||
|
Visual Aids : 29 phrases in 11 subjects |
| Agriculture | 1 |
| Archery | 1 |
| Architecture | 1 |
| Aviation | 8 |
| Business | 2 |
| Electronics | 4 |
| General | 1 |
| Nursing | 1 |
| Otorhinolaryngology | 1 |
| Space | 2 |
| Technology | 7 |