The industrial cluster is an economic geography phenomenon or experience, which also may be regarded as a kind of industrial space organization or the economic theorypattern.
产业集群是一种经济地理现象或实践经验,又可看作一类产业空间组织或经济理论模式;
2
This paper employs feature selection theory and pattern aggregation theory to reduce feature space dimension.
应用特征选取和模式聚合理论以降低特征空间维数。
3
The propagation pattern of the EH11 mode of waveguide HCN laser in free space is discussed and compared with the theory.