“coma”的概念、定义、翻译、参考文献-科学参考

单词	coma
释义	coma Physics 1. A nebulous cloud of gas and dust that surrounds the nucleus of a comet. 2. An aberration of a lens or mirror in which the image of a point lying off the axis has a comet-shaped appearance. Electronics and Electrical Engineering See distortion. Geology and Earth Sciences The diffuse shell of gas, typically about 150 000 km in diameter, which surrounds the nucleus of a comet. The coma and the nucleus form the ‘head’ of the comet.
随便看	underdetermination underdetermined under-developed countries underdevelopment underemployment underfit stream underflow under-funded pension scheme underground economy Underground Railroad underground storage underlying rate of inflation Undernet undernourishment underplating underpopulation undersampling undersaturated underscanning undershoot undershoot boundary understanding Understanding Society under-subscription underthrusting

科学参考收录了60776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。