查询词典 variable density system

Then the distribution model of elevated road pollutant concentration was established, taking vehical density as the main variable.

根据分析结果，以车密度为主要变量，建立了高架道路污染物浓度分布模式。

In this paper the surface charge density of cationic kraft pulp was chosen as response variable and the preparation conditions of cationic kraft pulp by the in-situ grafting copolymeration of acrylamide and cationic monomer, [2- ethyl] trimethyl-ammonium chloride were optimized by central composite design.

摘 要：以阳离子硫酸盐浆的表面电荷密度为评价指标，采用中心复合设计法对丙烯酰胺和甲基丙烯酰氧基乙基三甲基氯化铵接枝共聚制备阳离子硫酸盐浆的工艺进行了优化。

It is demonstrated that selecting flux density as design variable is a better way for core—varied optimization.

提出以优化为主、专家系统为辅的智能型优化设计思想，所附算例表明，这种结合是切实可行的，可以提高优化效果。

Both models with stand density index as an independent variable had better performance than those with the number of trees per hectare.

蓄积量作为评价立地生产潜力的指标，反映出林业生产单位科学经营森林的状况和水平。

The main research methods are:(1)Theory analysis:from the 2D plane geometry analysis, dots continuity characteristics are found. The first time irrational fraction algorithm is used in FM program.(2)Experiments reaearch:experiments of condition halftone function are designed under the cross-experiment principles. The first time variable information printer and C# language are used in experiment.(3)Data processing:new type digital density apparatus is used to measure data. Compare is used in processing data and error cause are explained. The main works as follows:The dot area percentage has been gained and new condition halftone function has been set up.(2)After being corrected, speed of irrational fraction algorithm has been compared with multiplicative congruence algorithm's.

本文的主要研究方法有：(1)理论分析：运用数字加网原理，从二维平面几何分析入手，借助实验验证研究网点连续特性；首次系统地把无理数取尾法随机数生成器引入到调频加网系统中，根据实验修正生成器的模型，运用统计假设检验理论，对生成的随机数序列进行统计假设检验；(2)实验研究：根据正交实验法则设计实验，首次采用可变信息印刷机(HP Laser PS印刷机)输出实验样张，克服了用传统胶印机作实验影响因素多的缺陷；采用新型数字式密度仪测量密度值，提高了数据精度；采用最新编程语言编写调频加网程序；(3)数据处理与分析：利用平均值比较法处理数据，对误差产生的原因进行讨论。

It is necessary to record the linear scale before and after log and the time difference curve in the acoustic variable density log.

阐述了声波变密度测井时对其进行测前、测后线性刻度及记录时差曲线的必要性。

Point reactor dynamic equation is a simple equation that not considered reactor space factor, it was used to calculate the dynamic proliferation of reactors because there is no space variable , otherwise it can be used to calculate coupled with the thermal feedback to get the number of neutron density changes situation.

点堆动力学方程是不考虑反应堆空间特性的简单方程，由于没有空间变量所以它通常被用来计算反应堆的动态增殖特性，而且可以用来与热工耦合计算有反馈的中子数密度变化情况。

Raises the purification project - gold shell square temporarily in view of the national biggest shellfish the design, Several tests has been done such as the aquaculture density, the water circulation, the aeration form, the water temperature and the oxygen consumption capacity, the oxygenizement ability, the water circulation quality, death of halting electricity, which has obtained the reliable design variable.

作者针对全国最大的贝类暂养净化项目——金贝广场的设计，进行了暂养密度、循环水量、曝气形式、水温与耗氧量、充氧能力、循环水质、停电致死等试验研究，取得了可靠的设计参数。

Turnabout H.D., driven by an AC electric variable-speed motor with constant torque, is specifically designed for use with thicker, more viscous inks and coatings, such as high-density plastisol.

由交流电变速恒转矩马达驱动的Turnabout H.D。为使用更粘稠的油墨和粘胶而设计。

The assumption of the variable tendency of slip-line in active zone is made based on the numerical results. Combining the slip-line equations and boundaries, the formula of bearing capacity is deduced which can consider the density of soil. The formula of bearing capacity of strip footing on ponderable soil is also deduced assuming that the slip-line field of ponderable soil is the same with that of weightless soil, which is proved to be an upper-limit solution, as its the same with that deduced by the upper-limit method in Prandtl mechanism.

在数值计算结果的基础上，对有重土地基主动区滑移线变化趋势进行了合理假设，根据边界条件和特征线方程求得了条形基础极限承载力的解析表达式，该表达式可以计算考虑土重度的条形基础的极限承载力；获得了不考虑重度对滑移线场影响时(即有重土在普朗特尔滑移线场下)极限承载力的解析表达式，该表达式与普朗特尔机动场对应的极限承载力上限解的表达式相同，这就从理论上证明了在土重度对滑移线场没有影响这一假定前提下得到的极限承载力是一个上限；(3)利用上限定理求解了极限承载力的最小上限。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。