“first motion”的概念、定义、翻译、参考文献-科学参考

单词	first motion
释义	first motion [`fǝrst `mō·shǝn] ^{AEROSPACE ENGINEERING} The first indication of motion of a rocket, missile, or test vehicle from its launcher.
随便看	tone-operated net-loss adjuster toner tone reversal tongara tong hold Tongrian tongs tongue tongue and groove tongue worm tonic convulsion tonic labyrinthine reflexes tonic neck reflexes tonic postural epilepsy tonic spasm ton-kilometer ton-mile tonnage tonnage deck tonne tonneau tonofibril tonometer tonoplast tonsil

科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。