英汉例句雙語例句General relativity predicts that the wavelength of this light will be shifted by a small amount due to the galaxies' mass, in an effect called gravitational redshift.廣義相對論預言這種光的波長會因這些星系的質量而有少量的偏移，這種傚應稱爲引力紅移。mass in general relativity更多例句