Positional expounding on building Dalian into a 2050s-oriented modern international city;

Discussions on key development fields of China's coal science and technology at early stage of 21st century;

Steel industry in the 21st century and the challenges to china's steel industry;

Steel industry facing 21st century;

Prospects for the world petrochemical industry in the 21st century;

New progress on nursing management both in abroad and at home in the 21st century;