gradational
短语词组
- gradational stratification 渐变成层
- Gradational Structure 多层梯度结构
- gradational requirements 层级要求
- gradational transition 逐渐过渡
- gradational zone 序粒带
- gradational type 过渡型
- gradational contact 渐变界面
- gradational segregation 级配离析
- gradational analysis 层次分析 返回 gradational