1) contrast ratio
对比率
1.
Compared with the common coatings, the nano compound coatings show better comprehensive performances in terms of contrast ratio, scrab resistance, adhesion, stain resistance, fungus resistance, age resistance and et al.
通过与普通涂料的对比,阐述了纳米复合涂料在对比率、耐擦洗性、附着力、耐污染性、抗菌性、耐老化性等方面的突出表现。
2.
The influence of amuont of EVA emulsion on film washability,amount of sierozem powder on contrast ratio are discussed.
介绍了使用灰钙粉和乙烯 -乙酸乙烯酯共聚物 (VAE)乳液配制VAE乳胶漆的技术 ,包括原材料的选用、配方和配制程序等 ;探讨了VAE乳液用量对涂料耐洗刷性的影响 ,灰钙粉用量对涂料对比率的影响以及用加速升温贮存试验和常温贮存试验测试乳胶漆的贮存稳定性的结果 ;综合评价了乳胶漆的性能特征和应用优势 ,并分析了灰钙粉提高涂料性能的原
3.
Objective To measure the translucency parameter(TP),masking effect(ME),and contrast ratio(CR) of opal porcelain of Ceramco,Shofu,Noritake,and Vita,and to compare the correlations among the three transmission parameters,in order to provide reference for selecting opal porcelain correctly.
目的测量Ceramco、Shofu、Noritake和Vita等4个品牌22种不同颜色的乳光瓷样本的透明度、对比率和遮色效果3个透射参数,并比较其相关性,为正确选择及使用乳光瓷粉提供参考。
2) Frequency comparison
频率比对
3) frequency comparison
频率对比
5) relative productivity ratio
相对产率比
6) power contrast degree
功率对比度
1.
Using "cat′s eye" effect theory to improve the laser eavesdropping device was proposed and the relationship between power contrast degree and defocus distance were analyzed.
提出了运用"猫眼"效应原理对激光窃听技术进行改进的方案,分析了功率对比度与离焦量的关系。
补充资料：参考比率
参考比率 Reference Rate
定义：
被用作浮息证券利率参考基准的指数或利率。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。