查询词典 average density

We consider the average density of cooperators in the stationary state for fixed interaction graph, while varying the upper learning graph.

通过固定底层的相互作用网络而改变顶层的策略学习网络，我们主要研究了稳态下合作者的平均密度。

In simulation study, the data were generated by the four methods proposed for the expression levels by Affymetrix high-density oligonucleotide array. They are robust multi-array average and PM/MM difference, PM-only and SUM model of based expression index.

而产生基因表现量的模式是目前常用来分析Affymetrix高密度寡聚核苷酸晶片的表现量模型，有Robust multi-array average和Based expression index中提出的PM/MM difference， PM-only和SUM模型。

The results showed that the average particle size enlarged,but surface charge density and the latex stability decreased,if the monomer concentration increased.

实验结果表明，加大聚合体系中单体的质量分数，可以得到粒径较大的乳胶粒，但乳液的表面电荷密度和机械稳定性减小。

The paper focuses on the tetraploidy black locust on Loess plaeatu of West Shanxi province, applys steady state promoter method and image processing technology to study the days transpiration water consumption in different weather ,different seasons and different site conditions,has primary analysis on the impact of environment on the transpiration and carries on the calculation to the tetraploidy locust tree by the single leaf water consumption to the single tree water consumption in CaiJiachuan watershed; Uses fast weighing method to measure and analyze the transpiration water consumption of five different herbs under the tetraploidy black locust forest (Capillary Wormwood,Vanilla,Agropyron Sristatum , Common Sowthistle and Medicago Sativa) in short time, in the same and different growcrop,and calculates the average transpiration water consumption per square metres ;the soil colome weighing method was used for determining diumal variation quantity of soil moisture evaporation, analyzing the dynamic variation and caculating the total quantity of soil evaporation water consumption from May to August ; then 5 kind of suppositions about the types of surface vegetation coverage are proposed in experimented site and the total evapotranspiration water consumption are calculated under 5 suppoitions ,aim at providing preliminary theoretic basis for ascertaining the transpiration water consumption of tetraploidy black locust forest,controling standing forest density and optimizing the forest grass deploy on loess plaeatu of west Shanxi province .

本文以两种不同立地条件下的四倍体刺槐林为研究对象，采用了气孔计法对蔡家川流域生长季内不同天气状况下(典型晴天、阴天和半阴天)四倍体刺槐日蒸腾耗水规律、不同季节(生长季初期、中期和末期)的蒸腾耗水规律、两种不同立地条件下四倍体刺槐蒸腾耗水比较以及影响四倍体刺槐蒸腾耗水的环境因子进行初步研究分析，并对四倍体刺槐由单叶耗水量向单株耗水量进行推算；采用经典快速连续称重法对四倍体刺槐林地生长的主要5种草本植物(白蒿、香青兰、冰草、苦苣和苜蓿)短时段内蒸腾耗水规律、不同生长季内蒸腾耗水规律、同一生长季不同种类草本植物蒸腾耗水量进行了比较分析，并且采用面积与重量比的方法推算出了单位面积四倍体刺槐林地几种主要草本植物平均蒸腾耗水量：采用土柱称重法测定了5月份～8月份土壤水分蒸发昼夜变化量、对试验期内土壤蒸发量动态变化作了分析、推算出了试验地5月份～8月份土壤蒸发耗水总量；对试验地地表植被覆盖类型提出了5种假设，推算出5种假设的情景下蒸散耗水总量，旨在为晋西黄土区四倍体刺槐林蒸腾耗水量的确定、林分密度调控以及林草优化配置等提供初步的理论依据。

The reactor thermal output is 4250MW, and the average linear power density is 179.5W/cm.

反应堆热功率输出为4250MW，平均线功率密度为179.5W／cm。

This project was established based on the first cooperative development of optical in situ real time detecting technique probing the atomic scale layer-by-layer epitaxy growth of oxide film. Over the last three years, we have given full play to the advantages and characteristics of both sides and have finished the assumptions and plans of this subject satisfactorily. 1. In Institute of Physics, we set up advanced oblique-incidence reflectivity difference equipment and wrote one data acquisition procedure that made the simultaneous detection of optical signal and RHEED signal into reality. 2. The first observation of sustained oscillations over hundreds of monolayers in both real and imaginary signals during the epitaxy growth of SrNb0.1Ti0.9O3 on SrTiO3 substrate in LMBE testifies that oblique-incidence is an excellent method to detect and monitor film epitaxy growth real time. 3. For the first time, we verify that oblique-incidence reflectivity difference method can be used to monitor the layer-by-layer growth mode during continuous growth through the correspondence between optical signals to atomic or molecular step edge density on the growth surface. 4. Phenomenological analysis shows that optical signals comprise three parts, the first is proportional to the average thickness of the film and depends on the bulk phase dielectric response; the second is proportional to the coverage of terraces and depends on the dielectric response of atoms or unit cells in the terrace; the third is proportional to the coverage of step edges and depends on the effective dielectric response of atoms or unit cells at step edges. This makes oblique-incident reflectivity difference technique a quantitative macroscopic method to monitor film growth.

中文摘要：本课题是在合作首次发展了氧化物薄膜原子尺度层状外延生长光学原位实时探测方法的基础上立项的，三年来，我们充分发挥双方的优势和特点，圆满完成了课题的设想和计划。1、在物理所建立了一套先进的光反射差法装置，编写了计算机系统的数据采集程序，实现了两路光学信号和RHEED数据的同步采集和显示。2、用激光分子束外延在SrTiO3基底上生长SrNb0.1Ti0.9O3薄膜，首次观测到连续外延几百个原胞层，周期振荡的光反射差实部和虚部信号，证明了光反射差法是一种能原位实时探测与监控薄膜层状外延生长的好方法。3、首次验证了通过对生长表面原子或分子台阶密度的响应，光反射差法可用于原位实时监测在连续生长条件下薄膜的层式生长模式。4、通过唯象理论的研究，证明光反射差信号由三项组成，第一项只与薄膜的平均厚度和宏观光学电介质常数有关；第二项与分子台阶面覆盖度和台阶面上分子层的光学电介质常数有关；第三项与台阶边缘的覆盖度成正比，并和在台阶边缘的分子的有效光学介电常数有关。

TWA is 8h time weighted average density, the sampling examination time more approaches 8h, the examination result accurately is real.

TWA是8h的时间加权平均浓度，采样检测时间越接近 8h，检测结果越准确真实。

Many kinds of modern techniques are used to characterize the obtained K_3Na(FeO_4)_2 sample.The preparation of ferrate by the anodic dissolution of an iron wire gauze at an average current density of 4.8 mA·cm~(-2) is described in the third chapter of this paper. The cyclic voltammogram and SEM are used to characterize the iron electrode polarization.

本文第三章研究了一种在浓NaOH溶液中电解铁丝网阳极快速电合成高铁酸钠的技术，用循环伏安和扫描电镜技术对电极的极化过程进行了表征，同时对电合成高铁酸钠的主要工艺参数之间的关系进行了阐述。

The average effective root density of Black Locust is as much as 45％ of Arborvitae's in the root roomalthough the distribution depth of Black Locust root is twice more than that of Arborvitae's in the same ages ofstand.

刺槐根系分布深度是侧柏的2倍多，但平均有效根长密度只有侧柏的44.5％。

In order to determine organic storage and its space distribution characteristics in paddy field of region, on the basis of second soil survey database, the space databases in unit of soil local type were set up by adoption Arcview software, integrated with GIS software, basined on soil type methods and region scale, the distribution of soil organic carbon storages in purple paddy soil of Chongqing were investigated. The results showed that the storage of SOC in Banan district of Chongqing was 6.48×10^6 t and average SOC density in Banan district with 8.31 kg/m^2 was higher than that of China.

为了明确区域稻田土壤碳库蓄积量及其空间分布特征，以全国第二次土壤普查数据资料为基础，运用地理信息系统软件Arcview建立研究区以土种为单位的空间数据库，结合GIS空间分析功能，基于土壤类型法估算重庆市巴南区稻田土壤有机碳储量及其空间分布特征，结果表明：研究区稻田土壤有机碳总储量约为6.48×10^6t，平均土壤有机碳密度为8.31kg/平方公尺，略高于全国平均水平。

What was it that made you want to change sider ?

是什么使你临阵倒戈？

I don't know what he wants, but let's play along with him.

我不知道他要干什么，可我