observation balloon

短语词组

短語

• 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
• the release of observation balloon 釋放觀測氣球
• balloon observation 氣球觀測
• pilot balloon observation 測風氣球觀測
• pilot t balloon observation 測風氣球觀測
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