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密度差，[摄]密度反差；密度差异对照
1、contrast with───与…截然不同，形成鲜明的对照; 把（一方）与（另一方）对比; 相映；与…形成对比；和…相对照
2、by contrast───相比之下；与之相比
3、phonolite density───响岩密度
4、gadolinium contrast───钆造影剂
5、brightness contrast───[摄]亮度对比；明度对比
6、contrast───n.明显的差异，对比，对照；明显不同的人（或事物）；（摄影或绘画中的）颜色反差；图像明暗对比度，反差；v.对比，对照；显出明显的差异，与……形成对比
7、lcd contrast───lcd对比度
8、density───n.密度
9、tapped density───[冶]振实密度
1、the original film the fog of lower, should be less than 0. 05 not corrected will affect plate density contrast.───原版胶卷的灰雾量给矮，答小于0.05，否则会感化印版上稠量不正不差。
2、The result is that the river outflow "floats" on the ambient seawater due to the density contrast.───结果是由于密度差河的流出物浮在海水之上。
3、Most galaxy associations are small and have a low density contrast.───大多数星系协是小的，密度反衬低。
4、Density contrast small sharps, its main parts of the partial face light up partial thin, ming du high, you need to make some deeper.───密度反差小的高调相片，其面部主要部分偏亮偏薄，明度高，需要作些加深调整。
5、use the black plate will increase the density contrast of the image.───使用黑版能增强图像的密度反差。
6、One of the important geological applications of the gravity method is to trace the boundaries of structures across which gravity anomalies and the density contrast differs significantly.───重力方法重要的地质应用之一是主要根据重力异常及密度变化追踪构造的边界。
7、Marking on the index based on impact assessment stripes two changes: light and dark spots of the perimeter and its density contrast.───花纹指数基于感冻评估花纹的两个改变前提：光斑与黑斑的周长及其密度不对比度。
8、lateral inhomogeneity and the variation of density contrast with depth in the crust and their effects on the inversion of gravity field are discussed.───讨论利用重力资料反演莫霍面时，地壳横向不均一性，密度随深度变化以及异常数据滑动平均处理对解释结果的影响程度。
9、It is often impossible to differentiate between structure and density contrast in determining the source of a gravity anomaly.───在确定重力异常源时，不可能在构造与密度差之间作出抉择。
1、There is not much temperature-produced density contrast at a given level; thus this does not much affect the buoyancy force.
2、Most galaxy associations are small and have a low density contrast.
3、The inversion shows that the method of effective density leads to the depth of basin smaller than the actual's, and the width of basin is more significant than the density contrast in computation.