Sunset yellow and ponceau 4R were simultaneously determined by dual wavelength equalizing-account method. 采用双波长补偿计算法同时测定饮料中的食用合成色素日落黄与胭脂红。
Method The angles of the bullet ballistic inside body were analyzed by ways of solid geometry construction and trigonometric function numeration. 方法采用立体几何作图法和三角函数计算法进行体内弹道射击角度计算。
