Investigation about Consumption Potential of Furniture Market in the Sub-cities

The barriers and measures to develop the modern service industry in second-tier cities;

Hirschman,the develop requirement of exhibition subiect and the feature of current exhibition,the paper focuses on the second-tier cities in China,discusses the weakness and strength in the development of exhibition and points out the second-tier cities play a more important role in the development of exhibition industry of China.

Taking secondary urban agglomerations in Changjiang River Delta as subject investigated,this paper constructs the theoretical model of general competitiveness of secondary urban agglomeration reflecting interactions among cities and influencial factors of competitiveness.

In case of using secondary urban sewage or polluted natural water as makeup water of the circulating water in thermal power plants, the bad influence of nitrification process concerning ammonium nitrogen should be considered.