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- Principle of Determining the Composition of Complexes with the Ratio of Double Peak Values at Double Wavelengths by UV Spectrophotometry 双波长双峰值比光度法测定配合物组成比的原理
- Ratio of double peak values 双峰值比
- Abstract： Objective This paper is to investigate the ratio of the systolic peak value and the end-diastolic velocity of blood flow (S/D value) and its clinical value, which can predict fetal anoxia. 目的探讨脐动脉收缩期血流峰值(S)与舒张末期血流速度(D)的比值(S/D)对预测胎儿宫内缺氧的临床价值。
- Objective This paper is to investigate the ratio of the systolic peak value and the end-diastolic velocity of blood flow (S/D value) and its clinical value, which can predict fetal anoxia. 目的探讨脐动脉收缩期血流峰值(S)与舒张末期血流速度(D)的比值(S/D)对预测胎儿宫内缺氧的临床价值。
- The ratio of every right and left ROI radioactivity to the average one of double cerebellum was counted. The abnormal rate of brain imaging was 98.2%. The areas of hypoperfusion were temporal,parietal,occipital. 计算机进行图像重建后，取各功能感兴趣区（ROI），作左右ROI与两侧小脑平均放射性强度比值，结果表明患者脑断层显像异常率98.;2%25，主要灌注低下区为颞叶、顶叶、枕叶。
- Through an actual engineering case of cast in-site box beams in a certain expressway construction, the paper has presented an application and effects study of double admixing technology in the mixing ratio of pump-delivered high-property concrete. 以某高速公路现浇箱梁工程为例,论述了双掺技术在泵送高性能混凝土配合比设计中的应用和实施效果。
- The results show that the retaining ratio of double bonds is 8.2%.The introduction of double bonds in polysilane brings forth much higher mass retaining ratio and better ceramic yield. 结果表明，产物中双键保留率为8.;2%25，双键的引入使聚硅烷获得了很高的质量保留率及较高的陶瓷产率。
- The ratio of students to teachers is 35:1. 学生和老师的比率是三十五比一。
- The ratio of schoolboys to schoolgirls is 2 to 1. 男学生和女学生的比例是2比1。
- Men outnumber women here in the ratio of three to one. 此地男子数量以三比一超过女子。
- Is it the peak value of 2020 or 2030? 48万/日流量是指什么时候，是2020或2030峰值吗?
- The canopy walls are of double thickness. 该天盖壁是双层厚的。
- Demand of readers has peak value of periodicity. 女性读者的需求高于男性读者的需求；
- The ratios of ABA/GA3,ZT/GA3,IAA/GA3, IAA/ZT were rarely changed in the juvenile zone, and appeared a peak value when the juvenile shift to the transition zone in 150-200cm,and showed a tendency to increasing again in adult zone. ABA/GA_3、ZT/GA_3、IAA/GA_3、IAA/ZT比值在童区均变化不大，而在接近阶段转变时都一致表现出上升的趋势，并且在150-200cm的区段上都出现有一很明显的峰值。 在成年以后又表现出上升的趋势。
- Politics is too full of stories of double cross. 政治活动中充满欺骗与出卖。
- When the soil is dry, there is the double peak type. 在土壤干旱时,为双峰型。
- The ratio of men to women was two to one. 男女的比例是二比一。
- A double peak waveform of VEP was found in some AD patients. 部分AD患者VEP形成双峰，AEP趋向低而宽大。
- Bronze medal of double dragon design. 双龙图案铜牌一枚。
- What kind of double talk was this? 这是一种什么样的模棱两可的话呢?
