Substrate preteatment technique sand blasting exists two big problems recently:(1) sandmaterial not being able utilized cyclically, technological cost being high, resources waste being serious;
针对基体前处理技术中的喷砂存在的两大问题:1)砂料不能循环利用,工艺成本高,资源浪费严重;
2
Sediment as you know, is material like sand, gravel, fossil fragments that is transported by natural processes like wind, water flow or the movement of glaciers.