管理学 知识组织 释 relation 关联关系 相同或不同对象具有联系时的结构化关系。
relation ①关系 ②关系式
＞代数学＞环论＞释义 relation 关系 relation 关系†；关系式
数据库 数据库管理系统及其实现技术 释文 relation 关系
- soil-borne transmission
- soil buffering ability
- soil buffering capacity
- soil buffering substances
- soil bulk density
- soil calcium
- soil capillary water
- soil carbon cycling
- soil carbon pool
- soil carbon sequestration potential
- soil carbon sink
- soil cartography
- soil cation exchange capacity
- soil cave
- soil chelation-induced phytoremediation
- soil chemical erosion
- soil chemical fixation
- soil chemical-melioration
- soil chemical process
- soil chemical remediation
- soil chemistry
- soil chemistry diagnosis
- soil classes of China (soil taxonomy of China)
- soil classification
- soil classification system