Compared with the platinum analysis method we are using now and UOP274-72 method,the results of platinum procedure used by nature base method is credible and celeritous, so nature base method is better for the intermediate control analysis during the process of NDC-4 dehydrogenation catalyst and realizes the improvement of platinum analysis method for NDC-4 dehydrogenation catalys

On the natural self-sealing reference of circular division dynamic measurement and dynamic measurement error correction;

This paper also studied the conserving tube peculiarities in agar-slant low temperature,nature culture media pole shape low temperature and liquid olefin normal temperature,respectively.

The building of a harmonious society calls for recycling economy so that the resources can be rationally exploited,environment pollution can be properly reduced and the relationship of humans and nature can be established,thus laying the natural basis for harmonious society.