This paper aims at providing guidance to the choices of painting for the coating project on the inner surface of tunnels on highways, in terms of four aspects as follows: the investigation of present conditions, collection of samples, analysis of compositions and deduction of sources of the dark blot conditions in tunnels.

Origin background and reservoir forming condition of lithologic oil pools in Songliao Basin;

Background, Current Situation and Prospect of Accu-Roll Mill;

Study on organic pollutant background in aerosols in Pearl River Delta area;