Based on the concept of sample distance,the standardized minimum distance discrimination method is proposed in this paper which provides a quantitative criterion to assess the sediment-carrying capacity formulae and other formulae.

A new discriminant method is put forward in the light of the drawbacks of distance discriminant analysis in handling the complex data.

In the theory of distance discrimination,we often do discrimination analysis by centroid distance method.

In accordance with the features of low porosity and low permeability in Mesozoic reservoirs on Yishan slope of Erdos Basin, reservoir properties are discriminated as per oil saturation calculated by using pyrolysis data, pyrolysis gas chromatography data and geochemical data, thus to establish reservoir discrimination standard.

According to some generally established discrimination standards, several simple and reprsentive discrimination methods were chosen.

Based on the strength identification standard of the existing service gate and the stiffness demand of the principal beam of the gate,defined in the Design Specification for Steel Gate of Hydraulic and Hydropower Project,the method is expounded about how t.