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
- Mariner 10
- Mariner 10 probe
- Mariner 2
- Mariner 4
- Mariner 5
- Mariner 6/7
- Mariner 9
- Marinera
- marine radar
- marine radioactive contamimation
- marine radioactive contaminations
- marine radioactive measuring instrument
- marine radio aids
- marine radioecology
- marine radio navigation
- marine ranch
- marine refrigerated equipment
- marine regional geological maps
- marine remote sensing survey
- marine renewable resources
- marine research station
- marine resource
- marine resource chart
- marine restoration ecology
- marine reverberation