observation balloon
短語詞組
- 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(cè)氣球
- an observation balloon 觀測(cè)氣球
- the release of observation balloon 釋放觀測(cè)氣球
- balloon observation 氣球觀測(cè)
- pilot balloon observation 測(cè)風(fēng)氣球觀測(cè)
- pilot t balloon observation 測(cè)風(fēng)氣球觀測(cè) 返回 observation balloon