| 单词 | rocketry |
| 释义 | rocketry (once / 81513 pages) n WORD FAMILY rocket: rocketed, rocketing, rocketry, rockets USAGE EXAMPLESThe world of 1941 was a world in which distance still mattered, a time before jet engines and rocketry, and Japan seemed impossibly far away. Time(Dec 08, 2016) “Really surprising problem that’s never been encountered before in the history of rocketry.” New York Times(Nov 04, 2016) He added that the issue had never been encountered in the history of rocketry. Reuters(Nov 04, 2016) n the branch of engineering science that studies rocket design and operation Hyper applied science, engineering, engineering science, technology the discipline dealing with the art or science of applying scientific knowledge to practical problems |
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