1. Such a range of variation is termed a cline. 这样一个变异区域称为梯度变异. 来自辞典例句

2. Callaham and Liddicoet found an elevational cline in ponderosa pine from Northern California. 卡拉汉和利狄柯特发现加利福尼亚北部产的黄松有一海拔渐变群. 来自辞典例句

3. Often individuals at either end of a cline are reproductively isolated. 通常,在两个变异群中的个体是繁殖隔离的. 来自互联网

4. The expanding enrollment of college and university result in the de - cline of teaching quality. 全国高校大规模扩招,使一些学校教学质量有所下降. 来自互联网