by contrast
1. 相比之下
By contrast, he was much more frank.
相比之下, 他坦率得多。
in contrast with/to
1. 与……形成对比; 与……相比
In contrast with his brothers, Tom is rather short.
与几位兄弟相比, 汤姆的个子相当矮。
习惯用语be a contrast to1.和...成对比by contrast with1.和...成对照； 和...比起来gain by contrast1.对比之下显出优点in contrast with1.和...形成对比［对照］in contrast to1.和...形成对比［对照］present a striking contrast to1.和...成显著的对比form a striking contrast to1.和...成显著的对比contrast finely with1.和...对比起来更加鲜明特殊用法brightness contrast1.【摄】亮度对比color contrast1.色对比度controlling contrast1.对比度控制， 反差控制derivational contrast1.派生对立detail contrast1.细节对比度development contrast1.显色对比度expanded contrast1.扩大的对比度fault contrast1.层错衬度film contrast1.底片对比率full sensitivity contrast1.全灵敏度对比度grain contrast1.晶粒对比intensity contrast1.强度对比light-and-shadowcontrast1.明暗对比（度），光与影对比（度）luminance contrast1.亮度对比度maximum contrast1.最大对比度overlapping contrast1.重叠对比phase contrast1.相衬picture contrast1.图象（黑白）对比， 图像对比度， 色调（深浅）对比positive contrast1.正反差， 暗反差relative contrast1.百分对比度， 相对对比率reproduced image contrast1.重显图象对比度signal contrast1.信号对比度simultaneous contrast1.共时对衬subject contrast1.景物反差， 被摄物反差， 对比度target-to-background contrast1.目标与背景对比度［反差］temperature contrast1.温度不均匀分布， 温度差tonal contrast1.色调对比video contrast1.图象对比度without contrast1.平淡contrast of fringes1.条纹衬比， 条纹反衬度