表面比 meaning in English

surface ratio

When a rock is heated by the sun, its surface expands more than its interior, and a layer may break off .
岩石受到日晒时，其表面比内部更为膨胀，就可能引起岩层破裂。
The research on the surface color of the ceramic files through experimentation indicates that the darker of the ceramic files , the more influences there would be
通过实验的方法对饰面砖自身表面颜色影响的研究发现,深颜色的面砖表面比浅色的面砖对面砖表面温度影响大。
It is found that the great cracks on the coarse surface are initiated easily than on the smooth surface by the sem observation and the crack size obtained at the dynamic indentation experiment is bigger than at the static indentation experiment under the same load . it is showed the single crystal silicon is easier to initiate the crack and fracture under dynamic load , the single crystal silicon ’ s
然后通过sem观察单晶硅试件表面压痕形貌,发现粗糙表面比光滑表面容易生成大裂纹,在相同载荷作用下单晶硅材料在动态压痕试验得到的裂纹要大于在静态压痕试验得到的裂纹,表明在动态加载条件下单晶硅材料更容易生成裂纹和破碎。