I in reason choose ten representative evaluating index from project , finance , environment and distributing ability aspects . at the same time , i use the topsis and gray method to do the comparing computing 本模型合理地选择了财务，环境，配电能力方面等十个代表性评估指标；设计了权重组合式模板；基于风险适应度、效益风险比及最大优属度三原则优选方案。
Different from clay soil and sand soil , the particle extent of silty soil is more narrow , so the component design method and construction technology , which is reasonable for clay soil and sand soil may not be effective to silty soil 粉质土不同于粘性土和砂性土，其粒度分布范围窄，所以适用于粘性土与砂性土的配合比及施工技术与方法并不就一定适用于粉质土。
In comparison with standing - wave heat engine , it has lower onset temperature and higher pressure ratio , which is of great significance for introducing a variety of energies of low quality into thermoacoustic engines , such as solar energy , waste vapor energy and so on 该热声发动机比纯驻波型热声发动机具有更低的起振温度、更大的压比及更高的热声转换效率。
The non uniform variation along the line of the input impedance calculated from phasor voltage to current ratio is conformed with that calculated from the phasor ratio of one plus the reflection and one minus reflection along the line 数值验证，由驻波电压与驻波电流之相量比及由沿传输线一加反射与一减反射相量比计算所得之输入阻抗，沿传输线之不均匀变化是一致的。
To study the changes of poisson ' s ratio and its anisotropy with confining pressure , we measured p - and s - wave velocities in three orthogonal directions in 19 rock samples under different confining pressures 为了研究不同岩石中泊松比及其各向异性随围压的变化，选取19块典型的岩石样品，在不同围压下沿相互正交的3个方向同时测量纵、横波速度，并通过计算得到了泊松比及其各向异性。
The content of granule dimension measure include granularity as well as parameter distributing and figure , length - width ratio and length distributing , thick and diameter distributing , the content of orientation include orientation distributing and chart designed 颗粒尺寸测量包括粒度和粒度分布参数及图形；长径比及长径分布，径厚比及直径分布；方位测量包括方位分布及制图等。
Abstract : abstract effect of alumina concentration , mole ratio and magnesium fluoride content on electroosmosis ni the aluminum smelting is investigated through test , and electroosmotic matter and depth analyzed by electronic probe and x - ray diffraction 文摘:通过试验考察了氧化铝浓度、分子比及氟化镁含量对铝电解电渗的影响，并通过电子探针和x -射线衍射分析了电渗的物质，电渗的深度。
Further more , on the basis of analysis of triaxial tests , the initial elastic modulus , poisson ' s ratio and strength index included in differ models is analyzed , and the damage characteristics of q3 loess is indicated on the basis of changing of the initial elastic modulus 进而，整理分析了不同模型共同含有的初始切线模量、泊松比及强度指标，并根据初始切线模量变化规律揭示了黄土结构损伤特性。
A rig was designed on the basis of thermodynamic analysis . some factors , including mixture composition , cycle compression ratio and suction ratio of circumfluence fluid of the rectifying column , are analyzed of their impacts on coefficient of performance 在对新循环进行了热力学分析的基础上，设计了自动复叠制冷循环实验台，分析了循环工质配比、循环压比及精馏柱回流液的抽取率对循环系统cop的影响。
