- 三角范数
- 三角锁
- interval
- interval algebra
- interval elimination method
- interval estimation
- interval estimation
- interval estimation
- interval function
- interval graph
- interval hypergraph
- interval iterative method
- interval matrix
- interval of integration
- interval of interpolation
- interval of poset
- interval of quadrature
- interval reliability
- interval topology
- interval valued fuzzy relations
- intractability
- in-tree
- intrinsic core
- intrinsic geometry for surfaces
- intrinsic rate of natural increase