“merger and accretion model”的概念、定义、翻译、参考文献-科学参考

单词	merger and accretion model
释义	merger and accretion model Encyclopedia 理学银河系形成释 merger and accretion model并合吸积模型一种早期的银河系形成模型。它认为银河系是由许多质量约为1亿个太阳质量的气体团块先独立演化成小的恒星系统，然后这些小的恒星系统再相互碰撞、并合形成的。
随便看	track following servo system track format track gage track geometry track gradient track group track-in-cleavage tracking Tracking and Data Relay Satellite tracking and data relay satellite system tracking and data-relay satellite system tracking and data relay satellite system, TDRSS tracking and data relay satellite system，TDRSS tracking and driving mechanism tracking and firing control tracking and identification tracking and observation tracking axis tracking camera tracking condition prediction tracking control tracking counter tracking encoded theodolite tracking error tracking IR-radiometer

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