结果表明,幼虫的种群密度愈高,理论抽样数就愈少;
The results showed that the higher the population density of the larvae, the less is the theoretical number of sampling clumps;
在相同误差水平,理论抽样数随平均虫口密度的增加而减少。
Under some level of error, the theoretical sampling number should decrease as the average density of the mite increases.
并确定了该天牛幼虫林间调查的最适理论抽样数和序贯抽样模型。
Otherwise, the optimal theoretical sampling number of the larva and the sequential sampling model were obtained.
不同抽样方法的比较结果,以平行线法效果最好,并确定了理论抽样数。
The compared results of different sample methods showed that them eans of the parallel lines was the best one and the theoretical sample number was also determined.
在空间格局研究的基础上提出了理论抽样数,并通过不同抽样方式的精度比较,得出平行线抽样方式最佳。
The theory sampling number was presented on the base of the spatial pattern. Several sampling methods were compared and the results showed that the parallel sampling method is the best.
运行以下工具进行统计分析:如描述性统计、测量系统的分析、假设检验、设计实验,控制理论图、验收抽样等。
Performs statistical analysis using tools such as: descriptive statistics, measurement system analysis, hypothesis testing, designed experimentation, control chart theory, acceptance sampling, etc.
运用积分抽样理论分析了该方法传输图像的机理和特性。
An integral sampling theory is employed to investigate principle and characteristic of the method.
以一般信号和正弦信号为例,通过理论分析和频谱图示意,对抽样定理中最低抽样率的取值进行了明确的说明。
Though examples of common signal and sine signal, by the frequency spectrum graph and theoretical analysis, the minimum sample rate of the sampling theorem is made clear.
在失效模式基础上提出剩余电流动作保护器的可靠性指标,并根据可靠性抽样理论提出其可靠性验证试验方法。
The reliability index was applied on basis of the analysis on the failure mode. And according to the sampling theory of reliability a reliability test method was put forward.
本文采用大子样、小子样抽样理论的数理统计方法,评定电阻应变计灵敏系数的精度等级。
The rank of accuracy of electric resistance strain gage factor is evaluated according to the sampling theory of large samples or small samples.
根据可靠性抽样理论,分析了过载继电器的可靠性试验方案,研制了过载继电器可靠性试验装置。
Based on the reliability sampling theory, the reliability examine plan of overload relay was analyzed and the test device was developed.
第二部分运用抽样技术及交通工程的相关理论研究车辆检测器的合理布设方法。
The second part uses the technology of collecting samples and relevant theories in traffic engineering to study the method of laying vehicle detections.
基于基尔霍夫标量衍射理论,详细分析了输入、输出平面及变换函数抽样间距的选取原则。
Based on the Kirchhoff scalar diffraction theory, the principle to choose sampling periods in the input plane, output plane and transformation function was analyzed in detail.
为对工业产品质量状况进行综合评价,提出了一种以模糊数学为基础的非离散抽样理论。
A non discrete sample theory was developed using fuzzy mathematics for the comprehensive evaluation of industrial product quality.
根据设备的特点及分层抽样理论,将分别比估计应用于机器设备整体评估中。
According to the characteristic of equipment and stratified sampling theory, the separate ratio estimator is applied to the appraisal of machinery and equipment.
它的主要理论基础是概率论中的大数定理,其主要手段是随机变量的抽样。
Its main theoretical base is the law of large Numbers in the theory of probability, whose main means is the sampling of random variable.
根据本文所证明的理论,抽样指条的极性必须在加权函数过零点处倒相放置。
According to the theory that has been demonstrated, sampled finger polarity must be placed inversely phase wherever the weighting function pass through zero-joints.
其中概率论是抽样审计建立的基础,数理统计是具体方法形成的理论基础。
The theory of probability is the foundation upon which sample auditing is established and numerical statistics is the theoretical foundation upon which concrete methods come into being.
空间积分抽样相位理论分析为消减欠采样产生的折叠混淆效应提供了理论依据。
Phase theory analysis of spatial integral sampling provide theoretical basis for under sampling aliasing reduction.
本文结合调查误差分析的理论,根据网络自身的特点,分析了网络调查的非抽样误差的来源,并提出了减少误差的方法。
With theory of error analyzing and characteristics of Internet, this article analyzes the non - sampling errors of Internet surveys and comes up with some steps to reduce them.
本文以抽样技术理论为基础,系统地分析了几种常用的抽样方法及各自的设计效果。
This paper analyses systematically common sampling methods and their own' s design effect on the base of the theory of sampling technique.
抽样定理中最低抽样率的明确说明为教学和理论研究提供了进一步的理论依据。
The papers explanation of the minimum sample rate in the sampling theorem provides a theoretical basis for teaching and research.
运用服装心理学相关理论,通过随机抽样调查,分析了医生服饰与其作用效果———病人心理的关系。
The effect of doctors' gown on patients' psychology was investigated based on costume psychology theory and random polling survey.
本文利用抽样理论分析了调幅调频脉冲响应抽样的方法及其精度。
This paper analyses sampling method and sampling precision of complex impulse response by sampling theory.
首先,本文简单介绍了几种随机模拟方法,并对重要性抽样作了改进,从而为选取好的重要函数提供了方法和理论依据。
First, some random simulations are introduced and the important sample is improved, which supplies the method and theory for the choice of the important sample.
本文依据理论模型确定模型变量,继而进行调查方案设计,对网络顾客进行随机抽样,获得相关数据。
Based on theoretical model, variables are established, and then investigation is designed. Finally, relevant data are acquired from online shopper samples at random.
本文从理论上证明并抽样统计验证了任意方向位置度误差服从瑞利分布;
The paper has proved theoretically and verified statistically by sampling that the distribution of the position error in arbitrary direction is Rayleigh Distribution.
抽样计画之理论与应用。
对生丝抽样检验分级理论在柞蚕丝领域中的可行性进行了探讨,并根据这一理论对柞蚕水缫丝标准中纤度偏差指标进行了分析和等级区间划分;
On the basis of the theory, analyses and grade interval classification are conducted on the size deviation indices in the standard for water-reeled tussah silk.
哈金说,这很有趣,抽样理论是那勒所学知识的一部分。
Now this is interesting, Hacking says, because it shows that sampling theory was part of Nala's theory.
应用推荐