查询词典 logarithm

The double logarithm curves represents two down concaves, the cross flow comes from cave system to fracture system and the equivalent triple continuous medium channels to the fracture system and cave system.

所绘制的双对数导数曲线表现为2个下凹部分，分别表征溶洞系统向裂缝系统的窜流，等效连续介质向裂缝系统、溶洞系统的窜流。

The program compile with BASIC language and O'NILLs filter coefficient can be used for forward calculation with the gived model.with the input of the observed data and the assumeed model,one can obtain the observed curve and calcula- ted curve in the Same dual logarithm coordinate.

该程序是根据 ONILL 的滤波系数，利用BASIC 语言编制的。它根据给定的地层模型可作正演计算。输入野外观测值以及所假设的地层模型便可在同一个双对数座标中绘出观测曲线和计算的曲线。

The logarithm model in fighter plane air combat effectiveness assessment was analyzed firstly, and its deficiencies were put forward. Then, combined with air combat theory and practice, a new method for air combat effectiveness assessment, synthesized index model, was presented aiming at the problems, and the sub effectiveness evaluation models were perfected synchronously.

首先详细分析了战斗机空战效能评估中常用的对数法模型，指出了模型中存在的问题；然后结合空战理论和实际情况，针对原模型存在的问题提出了一种新的效能评估解析计算方法——综合指数模型；同时对综合指数中各分项能力的评估模型进行了修改完善。

The results indicate, the δ^13C1 value becomes heavier gradually as coalbed methane desorbs. The δ^13C1 value and the desorption time displays a logarithm relationship.

结果表明，随着解吸过程的进行，δ^13C1值逐渐变重，δ^13C1值和解吸时间呈对数关系，δ^13C1值变重趋势具有先快后慢的阶段性特点。

The experimental results indicated that SDBS could increase the degradation rate and the first-order reaction rate constant was positively related to the logarithm of concentration of SDBS.

实验表明：涕灭威在表层土壤中的降解速率明显快于深层土壤，在未灭菌土壤中的降解速率明显快于灭菌土壤，微生物在涕灭威的降解代谢中起重要作用。

The results showed that E. coli and S. cerevisiae inoculated in pear juice reduced by 4.6 and 2.7 in logarithm when exposed to Pulsed Electric Fields at 200 Hz, 30 kV/cm, 10℃, for 240 μs, respectively.

结果表明，当电场频率、电场强度和处理时间、温度分别为200 Hz、30 kV/cm和240 μs、10℃时，梨汁中接种的大肠杆菌、酿酒酵母的数量分别下降4.6、2.7个数量级。

Intelligent CAD module came true to be exchanged with AutoCAD data, the option that covers the data that checks module of; intelligence CAM to use CAD module to arise the design that can have a figure and scale, automatically to have cutting tool and method plan, generate a knife file, generate numerical control code then, the explanation that the system still accuses code through logarithm is compiled undertake orbit is emulated, make manufacturing implementation compositive change, intelligence is changed, automation.

智能CAD模块实现了和AutoCAD数据交换，可以进行图形的设计和绘制、自动套裁；智能CAM模块利用CAD模块产生的数据进行刀具的选择和路径规划，生成刀位文件，进而生成数控代码，系统还通过对数控代码的解释编译进行轨迹仿真，使生产实现集成化、智能化、自动化。

The approach takes a basis of the local statistical parameters of the logarithms of fatigue lives at the reference load. According to an assumption that the material constants in each relation are concurrently in same probabilistic level, the curves is described by a general form of mean and standard deviation curves of the logarithm of fatigue life, in which four material constants are at most contained.

以参考载荷试验数据的统计参量为基础，按照每个模型中材料常数协同处于相同概率水平原则，将曲线表示为对数疲劳寿命均值和均方差线的广义形式，至多4个材料常数。

This article not to the data mining theory and the modeling method and so on make excessively many elaborations, also does not have the logarithm to make the meticulous discussion according to the warehouse construction aspect, but is puts with emphasis on in the data mining model choice and the design, in overseas had the research in the foundation, in the union corporate business analysis actual need, proposed the AVON company's customer value, the customer retention and the customer thin classify three data minings model; And executed has implemented the questionnaire survey and the method collection research data to various exclusive agencies customer which unified to member's telephone investigation, has carried on the confirmation and the appraisal in SQL Server 2,000 Analysis Service to the model.

本文没有对的数据挖掘理论及建模方法等作过多的阐述，也没有对数据仓库建设方面做过细的探讨，而是将重点放在数据挖掘模型的选择与设计上，在国外的已有研究的基础上，结合公司业务分析上的实际需要，提出了雅芳公司的客户价值、客户保持和客户细分等三个数据挖掘模型；并施行了对各专卖店的顾客实行问卷调查和对会员的电话调查相结合的方法收集研究数据，在 SQL Server 2000 Analysis Service中对模型进行了验证与评价。

In order to find screening rules suitable for lead compounds of pesticide,five descriptors:logarithm of partition coefficient of octanol/water,relative molar weight,number of hydrogen-bond donors,number of hydrogen-bond acceptors,polar surface areaand carcinogenic and mutagenic toxicities of 242 fungicides,512 herbicides and 399 insecticides were calculated and analyzed.

为了寻找适合于农药的先导筛选规则，对242个杀菌剂、512个除草剂和399个杀虫剂的5个描述符：疏水常数、相对分子质量、氢键给体数、氢键受体数、分子极性表面积和毒性进行了计算和分析，提出了杀菌剂、除草剂和杀虫剂先导化合物的筛选规则。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。