The erosion characterofsurface of cultivated land that is studied by movable erosion wind tunnel is one of the important ways of soil erosion problems.
利用可移动式风蚀风洞研究农田地表风蚀特性是研究土壤风蚀问题重要方法之一。
2
In reverse engineering, the characterofsurface border curve in complex contoured product is the key factor affecting the outlook designing quality of product.
在逆向工程中，复杂外形产品的曲面边界曲线的品质，是影响产品外观设计质量的关键因素。
3
Analyze the unique performance of flux during welding based on structure and characterofsurface. Introduce the advantage and disadvantage of flux for aluminum and its alloy in detail.