The purpose of the paper is to give some advices to land management in China by reviewing the 100 years history of the development of "equalization of land ownership" thought.

LIAO s economic ideas from the aspects of the theory of equalization of land ownership and the theory of goods standard were discussed.

The main contents are equal distribution of land rights and the capital s control.

Extraction of event-related potentialusing weight average;

Generalization of weighted average intermediate theorem and its asymptotic property for intermediate point;

A Weighted Average Decomposition Method of SDA Model and Its Application in Chinese Tertiary Industry Development;

The research on the methodology of weighted average evaluation for surrounding rock stability of tunnel

The paper gives an analysis of the state-of-art of power coal blending and the feasibility of coal blending by use of weighted mean and based on an actual example, it describes the solution for some restricting conditions and variation problems identified in power coal blending by use of program solving tool in Excel.

Methods:The space position function and time function were set up using of local drug concentration,as well as local drug concentration-space-time equation were set up using mathematical methods of weighted mean and multivariate analysis.

In this paper, in order to synthesize and appraise the experts ideas scientificly and directly, the method of weighted mean is used, so that the identity of the experts ideas is reflected.