| 单词 | research rocket |
| 释义 | > as lemmasresearch rocket research rocket n. ΚΠ 1946 Sci. News Let. 11 May 292/2 Included among the nine patents are an exploratory research rocket, to be propelled by a series of explosive charges. 2008 Nature 31 Jan. 523/3 He initially flew his instruments on weather balloons, then created the smaller, cheaper Aerobee research rocket to replace the V-2. < as lemmas |
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