Then we will ask how to give the Appropriate-Architecture-Technology a definition? This paper will answer this question from its four aspects: the concept, the connotation, the trait and the inclination of social value.

Author point out Mongolia Yurts is one important form of low-tech ecological architecture.

The concept and researching frame of ecological building technology are raised,the ideal origin of ecological building is researched from the new point.

Economics Evaluation on Appropriate Health Technology Spreading and Application in Countryside;

The effective supply of appropriate health technology in rural areas play an important role in promoting the accessibility and equality of primary health care in our country,and decreasing peasant’s disease burden in rural areas.

Objectives By comparing the training effectiveness of appropriate health technique of "Tenth Five-Year Plan" with the chronic appropriate health technique of "Eleventh Five-Year Plan ", explore the influencing factors of training effectiveness.

Objective To establish a scientific and perfect system of screening index to provide scientific information and Decision basis for the establishment of Appropriate Health Technique (AHT) source and the admittance of AHT.

Objectives Establish appropriate health technique (AHT) management and extension system in rural areas, from which AHTs could be extended effectively and continuously in Gansu province and then general level of health of dwellers in rural areas could be improved.