The dilemma of urbanization and farmland conservation in China was firstly analyzed and then the necessity and limitations of incrementalconstruction land quota were specified in this paper.
作者随之提出，新增建设用地指标在我国实际上扮演了类似发展权的角色。
2
An incrementalconstruction algorithm named PCCL of the constrained concept lattice was presented by using pruning technology that eliminated the redundant information in the construction process.
采用剪枝技术来消除构造过程中存在的冗余内涵比较，给出约束概念格渐进式构造算法PCCL。
3
Taking into account the impact of the construction process, the incremental method were proposed in this paper.