单词：gradients
音标：[ˈgreɪdi:ənts] ；
n. 道路的斜度( gradient的复数形式 ); 坡度; 变化程度; （温度、压力等的）变化率
n. a graded change in the magnitude of some physical quantity or dimension
n. the property possessed by a line or surface that departs from the horizontal
n. the property possessed by a line or surface that departs from the horizontal