1. 分撮：发缘线:hair line | 分撮:sectioning | 黄金点:golden point
2. 切片法：section-cutting 切片法 | sectioning 切片法 | section lifter 移片铲
3. 分节：section name 节名 | sectioning 分节 | sector 扇面
4. 割截：secondvirialcoefficient 第二展向系数 | sectioning 割截 | sedimentaryclaysecondaryclaysedimentation 沈积