“天鹅圈”的概念、定义、翻译、参考文献-科学参考

单词	天鹅圈
释义	天鹅圈 Encyclopedia 理学原行星状星云释 Cygnus Loop；radio source W78； Sharpless 103天鹅圈位于天鹅座翅膀上的横跨3°的发射星云。又称面纱星云复杂体。 Astronomy Cygnus Loop; Network Nebula天鹅圈
随便看	second messenger second messenger hypothesis second messenger theory second method of Lyapunov second mid-arc point second modernity second moment method second moment of area second moment of inertia second Morley adjunct triangle second Morley center second Morley cubic second Morley triangle second Napoleon point Second National Congress of Chinese Nationalist Party Second National Congress of Communist Party of China second-nearest neighbor second Neuberg circle second Neuberg point second Neuberg triangle second normal form second normal form, 2NF second normal stress difference second number-class second of arc

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。