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单词 θ208049
释义
society > travel > air or space travel > a means of conveyance through the air > spacecraft > rocket > [noun] > stage of rocket (3)
step1932

figurative. Astronautics. = stage, n. 12b.

stage1935

Astronautics. Each of two or more sections of a rocket that have their own engines and propellant and fall away in turn as their propellant becomes…

transtage1965

A final stage of a multistage rocket that can be restarted in order to change the flight path or orbit.

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更新时间:2024/11/13 10:16:43