查询词典 contrast ratio

But for breed Ganlenblue, the Callus-generated and motage ratio of quickset there were no significantly difference between 50 mg/L GGR treatment and contrast.

不同激素处理中，浓度为50 mg/L的GGR激素处理有利于粉蓝插条的成活和生根，其插条愈伤组织产生率和生根率分别比对照提高42.5和33.33个百分点；浓度为50 mg/L的GGR处理对园蓝插条愈伤组织产生率和生根率最佳；100 mg/L的GGR激素处理有利于品种杰兔插条的成活和生根，其插条愈伤组织产生率和生根率分别比对照提高10.83和7.5个百分点。25mg/L的GA有利于品种S13插条的成活，其愈伤组织产生率比对照提高36.66%，但是插条扦插生根率仅比对照提高10%；100mg/L的GGR对品种S13插条产生愈伤组织没有效果，其插条愈伤组织产生率与对照无显著差异，但是有利于插条生根，其插条扦插生根率比对照提高21.66个百分点。

For breed Powderblue, GGR treatment with density 50 mg/L was better for Callus-generated and rootage of quickset, the Callus-generated and rootage ratio increased 42.5% and 33.33%, compared with contrast.

结果表明：清水处理的兔眼蓝莓品种间插条愈伤组织产生率和生根率为园蓝最容易扦插成活，杰兔次之，粉蓝和S13较难扦插成活。

Two representative compounds have been determined by X-ray crystallography. The best ratio of reactants, the adequate reaction temperature and solvent have been found by contrast experiments.4. The better photoreaction conditions and irridation times have been confirmed through the different photoreaction results. It is the first time that fifty quinazoline derivatives with biological activity and four photooxidation products with urea functional groups have been obtained by photochemistry method. Two representative compounds, quinazoline derivatives and photooxidation products, have been determined by X-ray crystallography, respectively.

通过实验对比我们找到了较佳的反应物的投料比、反应温度和反应所用的溶剂。4、根据不同条件下的光反应结果，确定了硫脲衍生物的相对较好的光反应条件和光照时间，首次利用光化学手段成功得到50个具有生物活性的喹唑啉衍生物和4个具有脲基官能团的光氧化的产物，测定了两个具有代表性的喹唑啉和光氧化的产物的晶体结构。

This study measured the isovolumic contraction time , isovolu-mic relaxtion time and ejection time of CCP group and normal contrast group. Late,tei index was calculated, relationship between Tei index and LV function index such as ejection fraction ,the ratio of transmitral peak velocity at early diastole to transmitral peak velocity at late diastole etc.

本研究通过对正常对照组与肺心病病例组使用频谱多普勒超声心动图测量ICT、IRT、ET时间计算Tei指数，观察肺心病左心室Tei指数变化并分析其与超声测定的心功能指标EF、E/A等相关性，探讨Tei指数评价肺心病左心室整体功能的价值。

Wealthy real estate agent list, and the ratio of the contrast between the tax list has been commented, but the real estate on behalf of those who think is "仇富" psychological.

富裕的房地产经纪人名单的比例对比税名单已评论，但房地产代表谁认为这些是"仇富"心理。

When compared with conventional mathematical morphology Top-hat algorithm, several groups of experimental results demonstrate that the presented algorithm can suppress background effectively and the signal-noise ratio and contrast of image is improved efficiently.

与数学形态学Top-hat算法比较，实验结果表明本文所提算法能有效地抑制图像背景，从而较好地提高图像的信噪比和对比度。

This paper adopts Hidden Markov Model in part-of-speech tagging for English texts.Firstly the authors intro-duce the improvement on Viterbi algorithm and the step in training computer by means of hidden Markov model.Sec-ondly,through a series of contrast experiments the authors come to the conclusions:The Bigram model is better than the Trigram model in terms of the performance-cost ratio.

利用隐马尔可夫模型对英语文本进行词性标注，首先介绍了对Viterbi算法的改进和基于HMM模型方法训练机器的步骤，然后通过一系列对比实验，得出两个结论：二元文法模型的"性能价格比"较三元文法模型更令人满意；词性标注集的个数对词性标注的准确率有影响。

In contrast, the planned completion of the trunk road is significantly higher than the ratio.

与此相反，计划完成主干道路，大大高于比率。

The ratio of BL/Lmin between two groups also showed significant difference under 50%contrast.Conclusion:Binocular amplitude, latency and the ratios of esotropic patients differed from those of normal subjects.

在50%的BL/Lmin比值下，两组差异亦存在显著性意义，这种差异主要由于斜视组P100单眼最小峰时与双眼峰时明显不同所致。

Methods The routine MR imaging was performed on 114 intradural extramedullary tumors with a 1.0 Tesla MR unit.Rank correlation and regression coefficent were analyzed for MR characteristics of neurilemmomas、neurofibromas and meningiomas.Dynamic spin-echo MR imaging was performed on 23 cases types of contrast enhancement ratio-time curves were analyzed.

使用1.0 Tesla MRI系统(Magnetom Impact，Siemens)对114例髓外硬膜下肿瘤进行常规扫描，对常见肿瘤(神经鞘瘤、神经纤维瘤、脊膜瘤)的MRI征象进行等级相关和回归系数分析，同时对23例肿瘤进行SE(200/15)序列动态增强扫描，分析CER-T曲线类型。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。