词汇	heliacal set
释义	heliacal set 天文学偕日落
随便看	Approximate optimal values approximate optimization approximate order approximate parallel motion approximate parity approximate partial derivative approximate partial derived function approximate partial differential approximate percentage approximate percentage distribution approximate perfection approximate period Approximate periodic pattern approximate periodic solution approximate perturba tion model approximate phase center approximate picture approximate plotter approximate point spectrum approximate polygonmethod approximate position approximate positioning approximate precision approximate prediction approximate price