查询词典 average density

OR＞1 indicates dangerous factor, OR＜1 protective factor, and OR=1 no significance. The results showed that if triglyceride and very low density lipoprotein cholesterol increased an average level of normal respectively, and there would be OR of TG 2.43 (P＜0.05) and OR of VLDL-C 6.09 (P＜0.05), the high levels of TG and VLDL-C were the factors of lithogenesis. High density lipoprotein cholesterols (HDL1-C, HDL2-C, HDL3-C), with OR less than one, were the factors of protecting against the formation of gallstone.

结果：甘油三酯和极低密度脂蛋白胆固醇每增加一个正常均值水平，OR值分别是2.43(P＜0.05)和6.09(P＜0.05)，是重要的致石因素指标；高密度脂蛋白胆固醇(HDL1-C、HDL2-C、HDL3-C)，OR值均低于1，是重要的防石因素指标；低密度脂蛋白胆固醇和总胆固醇的OR值均小于1，本研究结果提示其可能是一种代谢状态而非保护因素。

By regression of experimental data, therules of the linkage between these factors, which will provide a theoretical basis for designing BBP with different scales.3 Using thermal analysis technology and dynamic thermogravimetry, the paper studies combustion kinetic characteristics of 3 types of agricultural crops at different rate of temperature rise, and thus, achieved dynamic parameters of these fuels at different rate of temperature, established dynamic model of straw combustion, which reflects the dynamic process in the fast combustion area.4 Characteristics of straw briquette combustion was experimented, focusing on the impact of straw type, temperature, air supply, and density, diameter, and weight of briquette on the combustion speed, and the following conclusions were drawn:(1) combustion of straw briquette fuel is static permeation diffusion combustion;(2) temperature has a larger impact on the speed of straw briquette combustion than air supply; the higher the combustion temperature is, the faster volatilizable component separates out, and the less steady the combustion is;(3) density of briquette fuel has impact on the speed of volatilizable component separation and therefore the combustion speed;(4) increase of diameter and weight of briquette fuel increases the average combustion speed in the initial stage, and that in the later stages is comparatively steady;(5) the proportion of volatilizable component in straw briquette fuel is high, therefore, the temperature control during combustion under the rational ventilation condition is essential to ensure its safe combustion.5 Using the above-mentioned results of experiments and theoretical analysis, and based on thought of hydraulic driven and bi-direction compression, the hydraulic system and compression parts of the HBP BBP are re-designed in terms of industrialization.

利用热分析技术，采用动态热重实验法，对我国的三大农作物秸秆在不同升温速率下的燃烧动力学特性进行了较系统的研究。得到了各原料在不同升温速率下的动力学参数；建立了秸秆燃烧的动力学模型，该模型反映了秸秆迅速燃烧区的动力学过程。 4 对秸秆成型燃料的燃烧特性进行了试验研究。着重研究了秸秆河南农业大学博士学位论文巫的种类、温度、空气供给量、成型燃料密度、直径、质量对成型燃料燃烧速度的影响并得出如下主要结论：①秸秆成型燃料的燃烧方式属于静态渗透式扩散燃烧。②秸秆成型燃料燃烧速度受温度的影响大于通风量燃烧速度的影响：燃烧温度越高，挥发分析出速度越快，燃烧平稳性愈差。③成型燃料密度影响成型燃料挥发分的析出速度，影响燃烧速度。④成型燃料直径和质量的增加，使得燃烧初期的平均燃烧速度增大，中后期的平均燃烧速度相对平稳。⑤秸秆成型燃料含挥发分比例高，因此合理配风下的控温燃烧是保证其完全燃烧的关键。 5运用已取得的试验和理论分析结果，以液压驱动、双向成型为基础，从产业化的角度对HBP型成型机进行了液压系统和成型部件的改进设计；同时采用了二级预压机构，使该成型机的生产率达到 500kg.hd；单位能耗 60kwh。上'左右，磨损件修复周期 300小时左右，基本解决了影响生物质固化技术在国内推广的技术难题。

The population density is nevertheless approximately three-fold compared with the average population density in China.

而且居民密度从来没有超过中国平均人口密度的三分之一。

Based on the developed iron loss of surface-mounted permanent magnet machine of Slemon and Xian Liu, the expressions of the peak and the time rate change of flux density in the teeth and the yoke are derived, considering the beveling edges of the PM. According to the basic concept of the eddy current loss, the analytic calculations of the average eddy current loss density in the teeth and the yoke are presented respectively. Hence, a calculation method for the iron losses of PM with beveling edges is presented.

在Slemon和Xian Liu表面置磁型永磁电机改进铁耗算法的基础上，分别推导了考虑磁体边缘斜角时定子齿与轭的磁通密度的幅值及其时间变化率的表达式，结合涡流损耗的基本概念，分别提出了永磁电机定子齿与轭的平均涡流损耗密度的解析计算方法，由此建立了永磁电机铁耗的解析模型。

The average Crown generally decreased when density increased in Larix principis-rupprechtii plantation with different density in Saihanba Forest Farm and there was a visible trend.

2塞罕坝机械林场5种不同林分密度下的华北落叶松人工林，随着林分密度的增加，平均冠幅逐渐降低，且趋势明显。

On the basis of micromodel, relation of zinc oxide grains'average diameter to amount of seed grains has been studied out. Relation of 1mA /cm〓 electric field density, nonlinear coefficient, leakage current, breakdown energy density to amount of seed grains has been explained.

在模型基础上，推导出ZnO晶粒的平均粒径与籽晶含量的关系，解释了E〓、非线性系数、漏电流和击穿能量密度与籽晶含量的关系。

After measurement and analysis of the interfering voltage, potential gradient, the point current density, the weight-loss increases with average current density, and the depth of penetration increases with the interfering voltage.

测量和分析了干扰电压、电位梯度、点电流密度、失重量及腐蚀坑深后，可以看出失重量随平均电流密度而增加，腐蚀坑深随干扰电压而加剧。

This equation is suitable for conditions of the pressure from 0.03 MPa to 53 MPa, density from 2.9 kg/m^3 to 1800 kg/m^3, and temperature from 204 K to 473 K. The average absolute deviations of this equation for gaseous phase pressure, vapor pressure and liquid density are 0.296%, 0.213% and 0.148%, respectively.

将该方程计算的HFC-227ea的pVT数据与实验数据比较后表明：两者的气相压力平均绝对值偏差为0.296%，饱和蒸气压平均绝对值偏差为0.213%，液相密度平均绝对值偏差为0.148%。

MAIN OUTCOME MEASURES: Comparisons of numeric density,surface density and average size of synaptic conjunction.

主要观察指标：各组大鼠突触数密度、面密度、突触连接带的平均面积比较。

China is the world's countries with high population density One per square kilometer for the average population density of 134 people.

中国也是世界上人口密度较高的国家之一，每平方公里的平均人口密度为134人。

When this condition occurs, inbound replication with the source partner is stopped on the destination domain controller and event ID 2042 is logged in the Directory Services event log.

计算机密码学是研究计算机信息加密、解密及其变换的科学，是数学和计算机的交义学科，也是一门新兴的学科。

Instructions: click on the thumbnails to see a larger image, then use the left-right arrow keys to scroll through the slideshow.

使用说明：滑鼠点在小图上即可放大观赏。开启后键盘左右键可用来换照片。