数据库 数据库理论 释文 partial order relational model 偏序关系模型
- numerical manifold method
- numerical mathematics
- numerical mesh generation
- numerical method
- Numerical Method for orbital evolution
- numerical method for precise ephemeris
- numerical method of celestial mechanics
- numerical method of groundwater
- numerical minimization
- numerical model
- numerical modeling
- numerical modeling method of electrical exploration
- numerical modeling of tectonics
- numerical modeling of water-air two-phase flow
- numerical model of Gaussian probability space
- numerical model of grounderwater
- numerical models governing equations
- numerical observation
- numerical operator
- numerical orbital
- numerical parameter
- numerical positioning system
- numerical predicate
- numerical problem
- numerical quadrature