| [Visitor (120.204.*.*)]answers [Chinese ] | Time :2021-10-19 | Chemical attack and its causes and treatment
As a result of chemical changes caused by erosion, erosion and erosion of chemical reactions.
For example, the cave is calcium carbonate encountered with co2-soluble water will become soluble calcium bicarbonate, calcium bicarbonate water if heated or under pressure suddenly become hours of calcium bicarbonate dissolved in water will break down, re-become calcium carbonate deposited and formed. It is the result of long-term groundwater erosion in limestone area, which belongs to the erosion of running water. |
|
