dynamic varietal trends

• 变化趋势

dynamic varietal trends的用法和样例：

例句

1. Elevational and latitudinal trends were not pronounced.
   海拔和纬度的变化趋势不明显。
2. Trends of other operating parameters should be taken into account in making extrapolations.
   在作设计改进时应考虑到其它工作参数的变化趋势。