查询词典 asymptotic density

Abundant species with high strength of conspecific aggregation tend to show density dependence

个体数多、同种聚集度高的物种易于受到密度制约效应的影响。

We first investigated whether habitat heterogeneity influenced tree distributions, and then examined the conspecific tree patterns and density dependence after removing the effects of habitat heterogeneity.

我们首先分析了生境异质性是否影响树木的分布，然后排除生境异质性的干扰检验同种分布格局和密度制约效应。

At the same time, each kind of contaminative material density and temperature, the value of pHs influence the working state of the Ultra-Filter very much directly.

同时，各种污染物质浓度以及温度、pH值对超滤膜的运行工况影响都产生着直接的影响。

Methods: Integrated optical density was measured by ABC immuno-histochemical and in situ hybridization technique with computerized image processing. The rat′s brain was coronally sectioned after combination of EA and MEL.

采用ABC免疫组织化学和原位杂交组织化学技术，结合计算机图像处理，测定其积分光密度值。

When increase the ultrasonic power, the ultrasonic density and solute athletics rate all increase, intensify the impact which made in ultrasonic cavitation and corrade degree to gesso, heighten the decomposition ratio.

当超声波功率增大，超声密度就越大，溶质分子运动速度增加，强化空化产生的冲击流，对磷石膏的侵蚀力度也加强，因此提高磷矿分解率。

Several problems, such as poor micro-machinability of graphite, corrodibility and high density of metal, rise when the conventional materials such as graphite and metal applied in micro fuel cells.

传统的石墨、金属等材料用于微型燃料电池时产生了不少问题，如石墨材料微加工性能差，金属易腐蚀、密度较大等不利于应用于便携式设备。

Xrays of limb bones may show reduced density and thin cortices and in some cases fractures in metaphyses.

对四肢骨骼的X光检测显示出骨量减少，皮质变薄，甚至干骺端碎裂。

The adoption of Cortina business card printing and membership card-making machine in the newspaper business card printing and membership card coloring advertising, not only to meet advertisers overprinter precision requirements, Business card printing and membership card making ink density and color have been improved.

拔取Cortina 制卡和会员卡制作机在报纸上制卡和会员卡制作不黑白告白，不仅能满意告白商套印精度的请不求，制卡和会员卡制作油不朱的密度及色强度也获得提矮。

By this method getting the density of the total flavone of Bragica juncea Coss was C=0.4450mg/ml and the rate of recovery was 100.7%.

结果测得样品中总黄酮的含量C=0.4450 mg/ml，回收率为100.7%，其纯度和产率均较高。

It introduces a kind of novel loading test system, based on the operation principle of damper. this loading system is operated by the driving motor. it realizes the loading, in that the damper has a negative drive force that puts on the motor. Based on the ordinary electromagnetic damper, the thesis presents a novel hybrid excitation electromagnetic damper which has adjustable work characteristic, analyses the working principle and structural feature of the electromagnetic damper, deduces the formulas to calculate the eddy current density through the Electromagnetic theory, analyses the distribution of the eddy current in the cotyloid rotor, and also studies the method of calculating the damp torque, establishes the mathematical model of the electromagnetic damper, analyses the relationship between the electromagnetic damper structural parameter and damp torque, researches the engineering design and analysis method of the electromagnetic damper, provides theory foundation for the design and analysis of the electromagnetic damper, contrives a hybrid excitation electromagnetic damper that satisfies the target request, designs a set of compound excitation electromagnetic damping loading control system whose control core is AT89C51 monolithic integrated circuit, analyses the electric circuit part, and carries on the experimental test to this set of electric circuits. Finally it debugs this electromagnetic damping loading system, this system satisfies the target request proposed.

论文提出了一个全新的加载测试系统种类，该加载系统是在阻尼器工作原理基础上，利用电动机拖动阻尼器运转，从而阻尼器产生一个与运动方向相反的阻尼力矩，该力矩作用在电动机上实现对电动机加载测试；同时，论文在一般电磁阻尼器基础上提出了一种新型的可调式复合励磁电磁阻尼器结构，该种阻尼器的工作特性在一定范围内可进行调节；论文分析了电磁阻尼器的工作原理和结构特点，运用电磁场理论分析推导了电磁阻尼器的涡电流密度公式，分析了涡电流在转子杯内的分布图，并对阻尼力矩计算方法进行了研究，建立了电磁阻尼器的数学模型，分析了电磁阻尼器结构参数和阻尼力矩之间的关系，对电磁阻尼器的设计和分析方法进行了研究，为电磁阻尼器的工程设计建立了理论基础；设计了满足技术指标要求的复合励磁电磁阻尼器和一套以AT89C51单片机为控制核心的复合励磁电磁阻尼加载控制系统，对该控制系统硬件电路各部分进行了分析和设计，对软件进行了设计，并对控制电路进行了试验调试，该系统满足所提出的加载指标要求。

Finally it offers the analysis of the fault-tolerance system as well as its test verification.

这样，运行于空间环境中的系统的设计目标就是在保证系统实时性

However, it is still difficult to find out the real reason of the increase of the keratinized gingiva during the orthodontic extrusion whether it is due to the proliferation of the gingival tissue or to its elastic nature, that is because the proliferation of the fibroblasts as well as the connective tissue changes in volume and the intra-fibers spaces were all immeasurable in most of the studies.

然而，仍然难以找到真正的原因增加的角化牙龈在正畸挤压它是否是由于扩散的牙龈组织或其弹性性质，这是因为增殖的成纤维细胞以及作为结缔组织的变化量和内部纤维空格都是不可估量的，大多数的研究。