“Crab Nebula”的概念、定义、翻译、参考文献-科学参考

单词	Crab Nebula
释义	Crab Nebula Encyclopedia 理学蟹状星云释 Crab Nebula蟹状星云金牛座的一团无定形的膨胀气体云。星表中的编号为M1和NGC1952。标准历元J2000为赤经05h34m31.94s，赤纬+22°00′52.2″。角径为7′×4′，视亮度相当于9等星。 Astronomy Crab Nebula蟹状星云
随便看	tangential composition law tangential coordinate tangential curvature tangential curve tangential derivative tangential discontinuity tangential distortion tangential element tangential embedding tangential equation tangential fan tangential field probe tangential firing pulverized coal boiler tangential force tangential graph method tangential inertial force tangential line integral tangential mapping tangential mid-arc circle tangential mid-arc triangle tangential motion tangential multiplicity tangential net tangential neurofibre tangential osculating space

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。