| 单词 | ullage rocket |
| 释义 | > as lemmasullage rocket ullage rocket n. a small auxiliary rocket used under conditions of weightlessness to provide sufficient acceleration to force liquid propellants to one end of the tank, thereby ensuring continuous fuel supply to the engine of a spacecraft. ΘΚΠ society > travel > air or space travel > a means of conveyance through the air > spacecraft > rocket > [noun] rocket1919 moon rocket1921 space rocket1928 space gun1929 step rocket1932 ion rocket1936 photon rocket1949 rockoon1953 space launcher1955 launcher1958 cosmic rocket1959 ullage rocket1961 1961 Aeroplane & Astronautics 101 815 Even firing of the ‘ullage’ rockets..proved inadequate. 1966 New Scientist 14 July 72/1 This..state of affairs is achieved both by the use of small ‘ullage’ rockets and, after these have been jettisoned, by employing the vented gases themselves. < as lemmas |
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