短語詞組短語Included spray angle 噴束夾角included trace angle 跡線夾角included d angle 夾角plane included angle 平麪夾角included angle cosine 夾角餘弦的hyperbolic included angle 雙曲夾角included angle cosine method 夾角餘弦法modified included angle 脩正夾角the included angle cosine 夾角餘弦 返回 included angle