Dark roasts can range in color from a medium chocolate brown with a satin-like luster to an almost black bean with an oily appearance.
深度烘焙的咖啡豆颜色介于富有缎面光泽的巧克力色到油亮的棕黑色。
The black material is considered as carbon deposition, which is formed by oily-liquid medium fission product (mainly carbon black) covering inside crack during the discharge process of pulse current.
认为这些黑色覆盖物为脉冲电流在放电过程中，油性液体介质裂变产物(主要为碳黑)涂覆在裂纹内部形成的积碳。
Dark roasts can range in color from a medium chocolate brown with a satin-like luster, to an almost black bean with an oily appearance.
深度烘焙的咖啡豆颜色介于富有缎面光泽的巧克力色到油亮的棕黑色。
应用推荐