“猎户座大星云”的概念、定义、翻译、参考文献-科学参考

单词	猎户座大星云
释义	猎户座大星云 Encyclopedia 理学发射星云释 Orion nebula猎户座大星云位于猎户座的发射星云。用肉眼观察，猎户座中构成“宝剑”的有三颗星，中间一颗是较模糊的亮斑，它不是单颗星，而是一个星云，即猎户座大星云（星表编号为M42和NGC1976）。
随便看	motion vector motivate behavior mechanism motivating members motivation motivational climate in sport motivational intensity Motivation and Personality motivation conflict Motivation-hygiene Theory motivation interview motivation process theory motivation theory and mechanism motivation theory of chain-of-response model motivation theory of expectancy-valence model Motivator-Hygiene Theory motive motive and effect motive force of the development of history motive magnetic structure motive of dance motive of interpersonal communication motivic cohomology motivity of history motometer moto perpetuo

科学参考收录了854744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。