Based on the research of the digital chart s feature and attribute,the paper analyses the format and relation of the CDC and S-57 and rebuilds the objects and attributes.

And this paper proposes that difference of bearings of two objects is no less then 50 and no bigger then 150in practice of fixing.

An Overview of Research on Biomarkers Applied to Environmental Assessment;

Selection of multiple biomarkers for indicating exposure of environmental estrogens in aquatic ecosystems;

Comparisons of biomarkers of four fecal sediments from high,middle and low latitudes;

Application of GC/MS/MS analyzing method in biomarker study;

Application of biomarkers in marine environment monitoring;

Application of biomarker detection in differential diagnosis of cervical lesions;

Mathematical calculating model using biomarkers to quantitatively determine relative source proportion of mixed oils;

Progress of Research on Molecular Biomarkers for Monitoring Contamination Level of Water System;

Source tracing of biomarkers in the organic pollutants from atmospheric particulates in Beijing city during summer;

Biological marker characteristics in Shannian of Gaoyou depression;

According to the geochemistry analyses such as carbon isotope, chromatogram and chromatogram-mass spectrum of crude oil from the main layers in shallow-middle level and their source rocks from all layers in Tangjiahe oil field,δ~(13)C and appropriate biological marker parameters,e.

It is known that the oil is a mixture of the oils formed in two stages,and its maturity is lower to maturer according to paraffine chromatogram and biological markers.