polar navigation
| chart
| polar navigation | |
| avia. | 地极导航 |
| avia. од. | 极区航行 |
| space | 极区导航 |
| chart | |
| environ. | 图表; 航海图 |
| hydroel.st. | 图; 图表 |
| manag. | 表格; 示图 |
| manag. од. | 海图 |
| met. | 表; 记录纸; 卡片 |
| |||
| 地极导航; ★ 极区航行 | |||
| 极区导航 | |||
| 极性导航子 | |||
|
polar navigation : 6 phrases in 5 subjects |
| Air defense | 1 |
| Aviation | 1 |
| Navigation | 1 |
| Shipbuilding | 1 |
| Space | 2 |