ja 観測気球 (n)
― Synonym ⟶
Weight: 2.0
en sounding balloon Source: JMDict 1.07
en weather balloon (n)
― Synonym ⟶
Weight: 1.0
en sounding balloon Source: English Wiktionary
de wetterballon (n)
― Synonym ⟶
Weight: 1.0
en sounding balloon Source: German Wiktionary
fr ballon sonde (n)
― Synonym ⟶
Weight: 1.0
en sounding balloon Source: French Wiktionary