数据库 数据库理论 释文 rough relational model 粗糙关系模型
- melt rapid quenching
- melt spinning
- melt spinning machine of chemical fiber
- melt-spinning method
- Melt-spun NdFeB permanent magnetic material
- melt static mixer
- melt stream extrusion
- melt treatment
- melt viscosity
- Melucta
- Melungtse
- Melvil Dewey
- Melville Island
- Melville Peninsula
- Melvin Calvin
- Melvin Ellis Calvin
- Mel’nikov
- Mel’nikov-Arnold integral
- Mel’nikov method
- MEM
- member
- memberane electrolysis method
- member galaxy
- member object
- member of a set