The development and application of organosilicone modifying acrylic resin,polyurthane,nitrocotton and casein etc. in leather chemical materials at home and abroad are introduced.
The importances of Earth System Sciences,Global View,and the continuous supports from relevant national scientific authorities in the development of modern karstology in China are emphasized.
Curricular knowledge view is one important forky point in the development of curricular knowledge, which is one of the most important perspectives to analyze curricular knowledge view.
Due to the lagged manufacturing technology, lower efficiency and unbefitting consumption pattern, etc, there is a big challenge of energy-environmental sustainable development in the cities in China.