Based on conditions of geological structure and hydrogeolgy and strata lithological type, coal quality and thickness, and gangue of coal seam in Wanquan coal field, the prospects of coal bed underground gasification are comprehensively analyzed.

2 coal mine of the Hongshan coal field according to the geological settings,drilling equipment and technique,and treatment methods used for solving problems encountered,which would be of referential significance for coal exploration and drilling.

The formation and harm of spontaneous combustion in coal field are generally described.

Transient Electromagnetic Method can be used to prospect the complex geological situation of water rich coal fields.

Comparison of coalfields and coal-mining geological conditions of the main coal-producing countries in the world;

Specialization of electromagnetic instruments for coalfield hydro-geological exploration;

Discussion on Coal Quality and Market Direction of Xingxian Coalfield;

Modern Significance of Wan Quan s Theory of Health Preserving;

Guide Significance of WAN Quan's Academic Thinking to Mordern Paediatrics of TCM

After researching many historical mateds, especially the edition, printing, various records and the book s own preface, the author believes it is a spurious copy of another book Wanshi Jiachuan Youke Fahui written by WAN Quan.

The effects of"Manda 31"on photosynthesis and mineral nutrition absorption were studied in 3 vegetables (pak-choi,flowering Chinese cabbage and Chinese kale) in 3 treatments (10 000 times and 5 000 times spraying,water spraying as control).