查询词典 loss ratio

The loss of signal-to-noise ratio was used in comparing the noise performance of holograms before and after fixing.

探讨了双色存储全息图的图像保真度，采用信噪比损失描述双色固定过程对全息图像的像质影响。

Y-waveguide is widely used in the integrated optics, and it is important to know its specifications, among which the beam-splitting ratio and insertion loss are the most critical parameters.

Y波导在集成光学系统中得到了广泛的应用，并拥有很大的潜力，近年来备受关注。因此了解它的各项指标至关重要。

Weight loss ,good flower ratio , Vitamin C , total sugar and RI are measured during storage .

贮藏期间对黄花菜的失重率、好花率、V-C含量、总糖含量和呼吸强度进行了测定。

At the same time, the content of MgO of BF slag to increase 0.35 % reached 7.8-8.0%,the meltability temperature and viscosity of slag reduced, the fluidity of slag from 115mm impromed to 170mm, the iron loss from 7.09% decreased 5.15%, pig iron yield decreased 18t/d ,and comprehensive coke ratio declined 6.57kg/tp by indexes correction, effects of saving coke was significant ,and technical parameters of sinter and BF were optimized and improved,so that the content 7.8-8.0%of MgO of BF slag is suitable level.

高炉渣中MgO 含量提高0.35%达到7.8-8.0%，炉渣熔化性温度与粘度下降，炉渣流动性由115mm提高到170mmm，铁损由7.09%降低到5.15%，校正后产量小幅了下降18t/d，但综合焦比下降了6.57kg/tP，节焦效果显著，同时烧结与高炉的工艺参数得到优化与提升，炉渣MgO含量7.8-8.0%为较适宜水平。

Nanomaterials have many new characterizes which different from the normal materials for their small size, big surface area ratio and quanta dimension domino effect, for examples, the metal with good conductor will be turned into nonmetal when the size is reduced tonanometer levels; the resistance of originally nonconductor will be descended greatly when its size is reduced several nanometers or so, and loss the nonconductor property; the general solid is steady under certain conditions, while under nanometer conditions, the capabilities will be effected greatly by the granule sizes, the newness characteristics made nanomaterials have great appliance foreground on catalyze, optics, and industry produce and so on, therefore the nanomaterials have been the hotspot for materials science, chemistry science and so on.

纳米材料由于尺寸小、比表面积大和量子尺寸效应使它具有不同于常规固体材料的新的特征，如原来是良导体的金属，当尺寸减小到纳米量级时就变成非金属型；原来是绝缘体的物质，当尺寸减小到几纳米或几十纳米时电阻大大下降，失去了绝缘体特性；常规固体在一定条件下物理性能是稳定的，在纳米状态下，颗粒尺寸对性能产生强烈的影响等等，这些新奇的特点使得纳米材料在催化、光学、工业生产等各个方面都有着广阔的应用前景，因此，纳米材料目前已经成为材料科学、物理学及化学等学科的前沿热点。1990年7月在美国巴尔基摩召开了国际第一届纳米科学技术会议，正式把纳米材料科学作为材料科学的一个新的分支公布于世。

This paper is to analyze the spoilage of open-shelf service in college libraries, reveal the fact of the inverse ratio between loss and increase of books, and raise measures to reduce the spoilage with our subjective efforts, stress that readers and librarians will together cherish books.

本文就高校图书馆开架流通中存在的图书损耗严重的现象进行了分析，揭示了高校图书馆中的图书消耗率与图书增长率成反比的客观事实，提出了如何通过主观努力来降低损耗的措施，强调读者应和图书馆的工作人员一起珍惜图书、爱护图书。

The result shows clearly that a production management was controlled thus the indexes of ore loss and dilution ratio were reduced and the ore dressing recovery percentage was raised and eco...

试验结果表明：通过生产过程管理控制，降低了采矿贫化率和采矿损失率，提高了选矿回收率，增加了矿山企业的经济效益

The ratio of one-step gain versus loss was 1.826:1. There was only one multiple-step mutation with a double-repeat gain observed at PentaD locus.

只发现1例多步突变，表现为PentaD位点的等位基因的增加2个重复单位。

The transfer function of the LLC resonant converter can be obtained by using the circuit impedance, ratio of resonant inductance, and quality factor. With proper selection of the resonant tank and modulation of the operation switching frequency, the proposed circuit can achieve zero voltage switching, stabilize the output voltage, and then reduce the switching loss.

其后级之半桥LLC谐振式转换器藉由推导电路阻抗、谐振电感比例值与品质因数得到转移函数，以及利用适当的谐振电路的设计与切换频率的调变的方式达到输出电压稳定，并且令功率开关具有零电压切换之功用，以降低功率开关的切换损失。

Numerical Simulation and Experimental Investigation on A Thermoacoustic Engine with Tapered Resonance Tube A symmetrical standing-wave thermoacoustic engine with tapered resonance tube has been numerically simulated with liner thermoacoustics. The simulation shows that using tapered resonance tube in thermoacoustic engine could decrease the velocity amplitude and lower the total acoustic power loss in the resonance tube. The experimental results indicate that the harmonic was suppressed effectively by using the tapered resonance tube, and the pressure ratio was improved.

采用锥形谐振管的热声发动机的数值模拟和实验研究利用线性热声理论，对一台采用锥形谐振管的驻波型热声发动机进行了数值模拟，发现采用锥形谐振管可有效降低工质气体的速度振幅，进而减小在谐振管中声功率的损失；与一台在相同频率下工作的采用等直径圆柱谐振管的驻波型热声发动机进行了实验对比，结果表明，在使用锥形管作为谐振管的热声发动机系统中，谐振管中的非线性效应得到了明显的抑制，热声发动机在基频模式下稳定运行，压比增大而加热温度降低。

John Robbins lives with his family in Santa Cruz, California.

约翰罗宾和家人居住在加利福尼亚州的圣克鲁斯县。

The international background is mainly the economic ties among different nations tented to be widen and deepen at the peace and development times.

国际背景主要是和平与发展时代条件下的世界各国经济贸易联系的日益加深。