 |
| |||
| Douglas sea and swell scale; sea scale; swell conditions scale; swell scale; sea and swell scale | |||
| Douglas Sea Scale (Ying) | |||
| шкала степени волнения моря: 2 短语, 1 学科 |
| 航海 | 2 |
|
| |||
| Douglas sea and swell scale; sea scale; swell conditions scale; swell scale; sea and swell scale | |||
| Douglas Sea Scale (Ying) | |||
| шкала степени волнения моря: 2 短语, 1 学科 |
| 航海 | 2 |