查询词典 reliability coefficient

The results indicate that as the value of fractal dimension is increased, the interfacial static friction coefficient first increases and then decreases; the interfacial static friction coefficient decreases as the fractal roughness parameter increases; while the inter-facial static friction coefficient increases as the material property or total normal load increases; the curve of static friction coefficient versus dimensionless total normal load is convex when the fractal dimension becomes smaller or fractal roughness parameter is larger or material property becomes smaller.

研究结果表明：界面的静摩擦因数首先随分形维数的增加而增加，然后随分形维数的增加而减小；界面的静摩擦因数随分形粗糙度参数的增加而减小，但随材料特性的增加而增加，也随总法向载荷的增加而增加；当分形维数较小或分形粗糙度参数较大或材料特性较小时，静摩擦因数－量纲一的总法向载荷曲线为凸弧。

Diopside crystals in fluosilicate glass-ceramics tend to lower thermal expansion coefficient, while richterite crystals in fluosilicate glass-ceramics tend to increase thermal expansion coefficient.The lowest thermal edpansion coefficient of K2O-MgO-SiO2-CaF2 fluosilicate glass-ceramics is 78.4×10-7(20-300℃), while the highest thermal expansion coefficient of this glass-ceramics is 85.6×

透辉石结晶相的含量增加使微晶玻璃的热膨胀系数降低，与此相反碱镁闪石结晶相的含量增加却使微晶玻璃的膨胀系数增加。K2O－MgO－SiO2－CaF2系统氟硅酸盐微晶玻璃的最小热膨胀系数为：78.4×10－7（20～300℃）；最大热膨胀系数为：85.6×10-7（20～300℃）。

First of all,we have given some of the basic concepts of differential equations, described the constant coefficient linear ordinary differential equation solution, for a class of second-order variable coefficient linear ordinary differential equation initial value problem, an approximate solution, the method is first unknown function of a definition for N sub-interval, and then in between each district within a constant coefficient ordinary differential equations similar to the replacement, the solution has been the problem as similar to the original analytical solution, and then gives a detailed second-order change order coefficient of linear homogeneous ordinary differential equation solution examples, the examples of the approximate method proposed in this paper is valid.

首先给出了微分方程的一些基本概念，讲述了常系数线性常微分方程的解法，针对一类二阶变系数线性常微分方程初值问题，提出了一个近似解法，本方法是先对未知函数的一个定义区间作N等分，然后在每一个小区间内用一个常系数常微分方程近似替换，所得到的解作为原问题的近似解析解，随后详细给出了一个求二阶变系数齐次线性常微分方程的解的实例，该实例说明本文提出的近似方法是有效的。

Chromic trioxide and chromium hemitrioxide are determined with iodometry, the coefficient of variation of chromic trioxide is 0.056%, and the recovery of marked compound is 99.82-99.83%; the coefficient of variation of chromium hemitrioxide is 1.45%,and the recovery of marked compound is 98.55-99.26%; iron is determined by complexometric titration, the coefficient of variation of iron is 1.73%, and the recovery of marked compound is 99.12-99.23%;sulfate is determined by complexometric titration, the coefficient of variation of sulphate is 0.16%, and the recovery of marked compound is

Analysis Of The Chromium Electroplating Wastewater By Oxidation-reduction And Complexometric Titration-化学工程与工艺-本文采用氧化还原滴定法与络合滴定法对镀六价铬的废水中铬酸酐，三氧化二铬，铁和硫酸根的含量进行了测定：铬酸酐和三氧化二铬用碘量法测定，铬酸酐的变异系数为0.056%，加标回收率为99.82-99.83%，三氧化二铬的变异系数为1.45%，加标回收率为98.55-99.26%；铁用络合滴定法测定，其变异系数为1.73%，加标回收率为99.12-99.23%；硫酸根用络合返滴定法测定，其变异系数为0.16%，加标回收率为

By carrying out the experiment of eight pieces of brick masonry walls with pilaster strengthened with glass fiber reinforced polymer and one piece of normal masonry wail with pilaster, the influence coefficient of pilaster, modified coefficient, statistic coefficient and effective participation coefficient are brought forward theoretically.

通过对1片未加固带壁柱墙体和8片玻璃纤维复合材料加固带壁柱墙体抗震试验的结果，在理论分析的基础上，给出壁柱影响系数、间接抗震抗剪承载力修正系数、统计系数和有效工作系数的表达式。

The elements of optical waveguide strain-stress measurement and fiber bragg grating strain-stress measurement system based on wavelength division multiplexing and spatial division multiplexing are emphatically discussed; the displacement regularity of stress field induced by roadway group excavating and short wall mining process is analyzed in detail; the concept of roadway "equivalent radius","correcting coefficient of coal and rock mass mechanical parameters",and "mining affecting coefficient" is put forward; the calculation method of "equivalent radius", the method of inversion of "correcting coefficient of coal and rock mass mechanical parameters", and the "mining affecting coefficient" determination method with the field measurement results and so on are provided.

重点研究了光波导应力应变测量原理，以及基于波分复用和空分复用技术基础上的布拉格光纤光栅应力应变测量体系；详细分析了近距离巷道群开掘工作和短壁体系回采工作诱发的应力场的重新分布规律；提出了巷道"当量半径"、"煤岩体力学参数修正系数"、"采动影响系数"等概念；给出了"当量半径"的计算方法、"煤岩体力学参数修正系数"的反分析求算方法、以及通过现

Determined by the specific geological background of Longhetun, the characteristics of the soil resources show abundant calcium and leaning to alkaline. Monomial indexes to evaluate the revisal coefficient of soil adapted to karst mountains areas were screened out combined with the function of karst dynamics system and analysis of characters of each factor about fertility in soil. Predigestion model to soil revisal coefficient monomial assessment was established by successful importation of the content of nutrition elements in plant body, latent efficient elements in soil and available thickness of soil in the cranny of epikarst according to the characters that three carriers of soil, soil water and karst water supply nutrition to plants and two layers of foundation consist of surface soil and soil in epikarst cranny, and several types of soil revisal coefficient and weather-soil productive potentiality were calculated, the results show that the soil revisal coefficient was even more practical after modification than before, which make up of innovation of this study.

龙何屯特殊的地质背景条件决定了耕地土壤资源的富钙偏碱的特点，结合岩溶动力系统的作用，系统分析土壤中各肥力因子的特点，筛选出适宜岩溶石山区特点的土壤订正系数评价单项指标，针对研究区存在土壤、土壤水、岩溶水三种载体提供植物营养和表层土、土下表层岩溶带裂隙土两层空间基质的特点，成功引入植物体内营养元素含量、土壤元素隐性有效态含量及土下表层岩溶带裂隙土有效厚度等新参数指标，探讨建立了土壤订正系数单项指标评价简化模型，计算出龙何屯各耕地类型土壤订正系数和气候-土地生产潜力，结果显示修正后的土壤订正系数比修正前更符合实际，成为本研究的创新点。

Designed the sensitivity algorithm that is based on dc tide, built mathematical model; to give out the definition of a few kinds of sensitivity coefficient and computation are formulary, if power transmits distributinging coefficient , spur track leaves to distributing coefficient and spur track leave to transmit distributinging coefficient .

梗概： 设计了基于直流潮流的灵敏度算法，并建立了数学模型；给出了几种灵敏度系数的定义及计算公式，如功率传输分布系数，支路开断分布系数和支路开断传输分布系数。

Research makes clear as a result: TC measure has apparent seasonal change feature, average scale is in the biggest April, achieve 230.4km, the smallest Feburary, for 69.5km;TC measure apparent area distributings inhomogenous sex, the area of TC measure occurrence maximum is located in 28.6 ～ 29.5 ° N, 133 ° of 131.1 ～ on the offing of E, and it is to the south of 123 ° E with 12 ° N with south area, TC measure often is under 200km; the TC to different intensity, its measure and intensity luffing have apparent difference, tropical storm (the 24h measure luffing of TS) is the biggest, and typhoon (the dependency of measure of the biggest;TC and intensity is in the 24h intensity luffing of TY) is discrepant below different method, on northwest travel, westing, north model TC measure and intensity show remarkable positive to close, both correlation coefficient achieved 0.93 above, northeast travel and whirly model the correlation coefficient of TC measure and intensity is adjacent 0.6, change direction model the correlation coefficient of TC is in 0.85 or so; in addition, the dependency of TC measure and intensity in its the different level of life history also is put in notable difference, sending exhibition period, the dependency of measure and intensity is best, its correlation coefficient...

探究结果表明：TC尺度有明显的季节变化特征，平均尺度在4月份最大，达到230.4km，2月份最小，为69.5km；TC尺度有明显的区域分布不均匀性，TC尺度出现最大值的区域位于28.6～29.5°N，131.1～133.0°E的海面上，而在123°E以东和12°N以南地区，TC尺度往往都在200km以下；对于不同强度的TC，其尺度和强度变幅有明显差异，热带风暴的24h尺度变幅最大，而台风的24h强度变幅最大；TC尺度和强度的相关性在不同路径下是有差异的，西北行、西行、北上型的TC尺度和强度呈显著的正相关，两者的相关系数达到了0.93以上，东北行和回旋型的TC尺度和强度的相关系数接近0.6，转向型TC的相关系数在0.85左右；此外，TC尺度和强度的相关性在其生命史的不同阶段也存在显著差异，在发展期，尺度和强度的相关性最好，其相关系数。。。

According to the absolute value of the coefficient in 3 the principal components,Marmot habitat selection'main factors were elevation、slope gradient、longitude(the absolute value of the coefficient respective were:0.860、0.740、0.712)and so on geography factor.Vegetation height and aboveground biomass have synergistic effect with geography factor.Distance from human disturbance and distance from road(the absolute value of the coefficient respective were:0.814 and 0.820) human activity factor were secondary factor.Vegetation coverage would named vegetation factor (the absolute value of the coefficient was:0.816) have very important influence to Marmota habitat selection.

根据三个主成分中载荷系数绝对值的大小可以判断影响旱獭生境选择的主要生态因子是海拔、坡度、纬度(载荷系数绝对值分别为：0.860、0.740、0.712)等地理因子，草高、地上生物量与地理因子又具有协同效应；距人为干扰距离、距公路距离(载荷系数绝对值分别为：0.814和0.820)人类活动因素是次要因子；盖度(载荷系数绝对值为：0.816)将其命名为植被因子，对旱獭的生境选择也具有重要的影响作用。

Salt is good, but if the salt becomes flat and tasteless, with what do you season it?

14：33 盐本是好的，盐若失了味，可用什么叫它再咸呢？

He reiterated that the PLA is an army of the people under the leadership of the Communist Party of China.

他重申，人民解放军是在中国共产党领导下的人民军队。