observation balloon

短语词组

短语

• observation balloon detail 观察气球
• air observation balloon 探空气球
• air r observation balloon 探空气球
• unmanned observation balloon [气象][航]无人观测气球
• an observation balloon 观测气球
• the release of observation balloon 释放观测气球
• balloon observation 气球观测
• pilot balloon observation 测风气球观测
• pilot t balloon observation 测风气球观测
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