“captive balloon”可以造什么句,captive balloon造句
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Article 2 balloons as mentioned in these Measures shall include unmanned free balloons and captive balloons.
Anti-jamming design of sensor signal sampling system in captive balloon
Article 2 balloons as mentioned in these Measures shall include unmanned free balloons and captive balloons.
Anti-jamming design of sensor signal sampling system in captive balloon