... terrain roughness 地面粗糙度 ; 地表粗糙度 roughness ratio 粗糙度比 ; 粗度比 equivalent roughness 等效粗度 ...
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并得出了面粗糙度比线粗糙度更能体现试件表面形貌特征的结论。
It is concluded that surface roughness can better reflect the characteristic of the sample's surface than line roughness.
粗晶组织比细晶组织的裂纹偏折更大，粗糙度诱发闭合效应更强，因而裂纹扩展较幔。
The short cracks deflect more severe in coarse grain structure than in fine grain one, result in roughness induced crack closure effect, therefore exhibit slow crack growth rate.
建立了兼含粗糙度与波面像差影响的中心点亮度比公式及其像质评价准则。
The formula and criterion of the Strehl intensity ratio consisting of the aberration and roughness are developed.
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