“沙漏星云”的概念、定义、翻译、参考文献-科学参考

单词	沙漏星云
释义	沙漏星云 Encyclopedia 理学行星状星云释 Engraved Hourglass Nebula沙漏星云位于苍蝇座，标准历元J2000的赤经13h39m35.07s，赤纬-67°22′51.74″的年轻行星状星云。因其形状像西方记录时间的沙漏而得名。又称MyCn18。 Astronomy Hourglass Nebula沙漏星云
随便看	second differentiator second distance second dual second dual module second dual space second economics adjustment of China second eigenfunction second electron emission Second Emperor of Qin Dynasty Second Empire of Brazil second factor second fall-line second Fermat point second field free region second field-free region second field free region (2nd FFR) second field-free region (2nd FFR) second filial generation second five-year plan of China second form of barycentric Lagrange interpolation formula second fundamental form second fundamental quantity second fundamental tensor second fundamental theorem second fundamental theorem of calculus

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。