“gaseous nebula”的概念、定义、翻译、参考文献-科学参考

单词	gaseous nebula
释义	gaseous nebula Encyclopedia 理学气体星云释 gaseous nebula气体星云银河星云中主要由气体组成的亮星云，包括行星状星云和发射星云等。 Astronomy gaseous nebula气体星云
随便看	closed covering closed current closed curve closed-curve problem closed cycle closed cycle engine closed-cycle refrigerator closed differential closed differential field closed differential form closed differential relation closed disk closed domain closed drain system closed-easy-axis closed economy closed ecosystem closed edge sequence closed edge train closed elastic drive closed element closed embedding closed-end fund closed equivalence relation closed expression

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。