Methods for developing nutrient criteria in estuarine waters;

The water quality criteria(WQC) and water quality standard(WQS) are the managed basis for the environmental water quality control aim.

Starting from discriminating concepts,the difference between water quality criteria and standards are distinguished,and their relationship in total amount control of water pollutants is analyzed.

The dynamic portfolio decision-making model with three-fund separation theorem based on stochastic benchmark;

Technological dimension chain is mainly used to fix the size and deviation when benchmark is not coincident.

Analyse of reference s selection of revolution parts in machine design;

As a result, the optimum marking method and the relation between concentricity and reference can be concluded, thus improving the concentricity of the hole throats on both ends of the carrier roller.

This article has described the reference selection,the accuracy control,the cutter selection and chucking method for the machining of the die plate used for certain military product.

Standard adjustment for the air splicer of Automatic winder;

The Analysis for Three Chief Standards of Leading Industry Selection;

This paper introduces a new method to create a precision standard for installing andcalibrating large mechanism using steel wire stretched,capacitance sensor and multi-function gauges.

Talking about the datum selection and how to use the method of drawing line;

The Discussion about Relations of Locating Error and Three Datum;

Datum creating of PowerInspect;