“vernal equinox”的概念、定义、翻译、参考文献-科学参考

单词	vernal equinox
释义	vernal equinox [`vǝrn·ǝl `ē·kwǝ´näks] ^ASTRONOMY The sun's position on the celestial sphere about March 21; at this time the sun's path on the ecliptic crosses the celestial equator. Also known as first point of Aries; March equinox; spring equinox.
随便看	selective flotation selective fracturing selective fusion selective heating selective identification feature selective inhibition selective interference selective jamming selective loading selectively doped heterojunction transistor selective medium selective mining selective permeability selective photoelectric effect selective plating selective poisoning selective polymerization selective quenching selective radiator selective reflection selective replacement selective ringing selective scattering selective solubility diffusion selective solvent

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