“annual variation”的概念、定义、翻译、参考文献-科学参考

单词	annual variation
释义	annual variation [`an·yǝ·wǝl ver·ē`ā·shǝn] ^ASTRONOMY The change in the right ascension and declination of a star during one year, due to the combined effect of the star's proper motion and the precession of the equinoxes. ^GEOPHYSICS A component in the change with time in the earth's magnetic field at a specified location that has a period of 1 year.
随便看	sweet corrosion sweet crudes sweetening sweet gas sweetgum sweet oil sweet orange oil sweet potato sweet roast sweet spirits of niter swell swell-and-swale topography swell diameter swell direction swelled ground swell forecast swelling clay swep sweptback wing swept-frequency reflectometer swept wing swim bladder swimmeret swimmer's conjunctivitis swimmer's itch

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。