(1) Notch and groove were produced on fiber's surface by plasma's pHysical bump and corrasion, meanwhile oxygenic or nitrogenic radicals were also grafted on the surface.

(2) The palaeostructure high part of Carboniferous in Indosinian epoch is favourable to the development of burial corrasion pores.

(3) The present models of forecasting initial corrosion time of steel-bar are only applicable to single-factor action environment, either concrete carbonization or chloride ions corrasion.

(4) The tracing method of radioactive nuclide in soil environment is widely applicated in studying soil corrasion.

(5) Although karst pore system was packed again after forming, it provides conditions for the development of burial corrasion pores.