balloon observation
短语词组
- pilot balloon observation 測風氣球觀測
- pilot t balloon observation 測風氣球觀測
- observation balloon 觀測氣球;觀察氣球
- balloon -borne astronomical observation 球載天文觀測
- observation balloon detail 觀察氣球
- air observation balloon 探空氣球
- air r observation balloon 探空氣球
- unmanned observation balloon [氣象][航]無人觀測氣球
- an observation balloon 觀測氣球 返回 balloon observation