近地天体 jìndìtiāntǐ near-Earth object Definitions Defs Origin Strokes Stroke Words Sentences Sents 近地天体 近地天體 jìndìtiāntǐ near-Earth object near-Earth object; any small solar system body whose orbit brings it into proximity with Earth
近地天体 近地天體 jìndìtiāntǐ near-Earth object near-Earth object; any small solar system body whose orbit brings it into proximity with Earth
