“North American Nebula”的概念、定义、翻译、参考文献-科学参考

单词	North American Nebula
释义	North American Nebula [`nȯrth ǝ`mer·i·kǝn `neb·yǝ·lǝ] ^ASTRONOMY A cloud of dust and gas in the constellation Cygnus; the density of this gas and dust is possibly a thousand times greater than the average density of interstellar gas; a much denser cloud of dust between the nebula and earth obscures portions of the emission nebula to create the appearance of the ``Gulf of Mexico'' and the ``Atlantic Ocean.''
随便看	height gage height gain height input height of burst height-of-eye correction height of instrument height of tide height of transfer unit height overlap coverage height pattern height-position indicator height-range indicator heiligenschein Heine-Borel theorem Heine-Medin disease Heinz bodies Heisenberg algebra Heisenberg equation of motion Heisenberg exchange coupling Heisenberg force Heisenberg picture Heisenberg representation Heisenberg theory of ferromagnetism Heisenberg uncertainty principle Heisenberg uncertainty relation

科学参考收录了103327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。