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- Secondly, other parameters such as temperature difference and emissivity of target and sky, molecular absorptive transmittance, instantaneous field of view (IFOV), contrast threshold and radiant wavelength are discussed in detail. 然后，对目标天空背景温差、发射率，气溶胶衰减系数，瞬时视场、对比度探测阈值以及辐射波长等参数作了详细讨论。
- Object: To evaluate mesopic contrast threshold under 3 kinds of background and to explore the effect of adaptation time, adaptation luminance and glare on contrast threshold of human s eye. 目的评估3种背景环境下的中间视觉对比度阈值,并探讨暗适应时间、背景亮度和眩光对人眼对比度阈值的影响。
- Contrast threshold see Threshold contrast 对比度域值见域值对比
- Black and white show a striking contrast. 黑和白形成明显的对比。
- The difference contrast is notable. 差别对比是显著的。
- The cabin has a flat stone for a threshold. 这间小屋用一条扁平的石头做门槛。
- Her white face and her dark dress contrast sharply. 她洁白的脸和她黑色的衣服形成强烈的对比。
- The treaty will be the threshold of lasting peace. 这个条约将成为持久和平的开端。
- The two brothers are in stark contrast. 兄弟俩形成鲜明的对比。
- He was on the threshold of his career. 他的事业刚刚起步。
- It is interesting to contrast the two writers. 将这两位作家加以比较是很有意思的。
- He had never crossed the threshold of a bar before. 他过去从未进过酒吧的门。
- In contrast to his brothers, Tom is rather short. 与几位兄弟相比,汤姆的个子相当矮。
- In contrast with his brothers, Tom is rather short. 与几位兄弟相比,汤姆的个子相当矮。
- Scientists are now on the threshold of an important discovery. 科学家们很快就会有一项重大发现。
- His actions contrast sharply with his promises. 他的行动与诺言形成鲜明的对照。
- He is an amusing contrast to Russell. 他和拉塞尔形成了有趣的对照。
- It is interesting to contrast the two proposals. 将这两个建议作对照是很有趣的。
- By contrast, he was much more frank. 相比之下,他坦率得多。
- She made the contrast of this picture with that one. 她把这幅画和那一幅进行了对比。
