分布的例句大全

Conyza canadensis, an biennial or annual composite herb originating from North America, was widely disturbed in China, and now the species has became a common invasive plant.

小飞蓬（Conyza canadensis）为菊科越年生或一年生草本植物，原产北美洲，目前在我国广泛分布，已成为一种常见入侵植物。

This has created something of a bimodal distribution leaving a much diminished centre.

这样一来，就形成了一种“双峰式分布”，持中间立场的众议员大大减少。

According to the bimodal distribution mode for arc current density with a large deformation of the pool surface, the calculation mode for electromagnetic force is developed and described in this paper.

基于熔池表面变形较大时电弧电流密度的双峰分布模型，建立了电磁力的计算模型。

Taking marked increase in AgNOR granule counting (> 9.26), variation in granule size and uneven distribution with lump formation as positive criteria, the positive rate of AgNOR in gastric cancer group was higher than that in CAG group ( P < 0.005).

以细胞核内AgNOR计数明显增多（＞9.26）或大小不等，呈团块状分布为阳性指标，则胃癌检出率高于CAG（P＜0.005），中、重度CAG高于轻度（P＜0.05）。

Best Linear Unbiased Estimator of Accelerated Life Test Under Weibull Distribution

Weibull分布场合恒定应力加速寿命试验的最优线性无偏估计

And others discussed the best linear unbiased estimator for the logistic population.

等又先后讨论了Logistlic分布参数的最佳线性无偏估计及估计的相对效率等问题。

In this paper, we study a recursive kernel distribution estimator of unknown distribution function F ( x) for negatively associated samples.

在NA相依样本条件下，对未知分布函数F（x）的递归核估计进行研究。

At first, scholars discussed the property of recursive kernel density estimator under the independent and identical distribution sequences, they obtained the corresponding results.

关于递归型密度函数核估计的性质，人们最初是在独立同分布情形下研究的，并取得了相应的结果。

Under some conditions, we get consistent property of this estimator and its asymptotic distribution.

在一些条件下，我们建立了该估计的相合性质和渐近分布性质。

In this method, binomial curve is used to approximate the intensity of the captured images, meanwhile, least square fitting method is used to compensate the phase error, and in this way, system error caused by the gamma nonlinearity of the projector is reduced greatly.

该方法采用二次多项式最小二乘拟合的方法近似输出条纹光强分布，实现对相位波动误差的补偿。

Through the research of binomial probability distribution function ( PDF), it has been proved that the PDF is a monotone increasing function of probability p and allowable failure time r in test, and is a monotone decreasing function of test time n.

通过对二项分布函数的研究，证明它是关于概率p和试验中允许失败次数r的单调增函数，是关于试验次数n的单调减函数。

The authors put forward a method to analyze the success ratios of the different multi-well drilling prospect plans by using binomial distribution probability model.

根据新区勘探资料少、风险较高的特点，可以采用二项分布概率模型，预测进行多井勘探的不同结果的勘探成功率。

In this model, nodes are modeled as Markovian arrival process ( MAP)/ phase type ( PH) distribution/ 1/ k non-preemptive priority queues with vacation model.

在这种模型中，节点是按照1/k相位分布（PH）马尔可夫到达过程（MAP）中的非抢占式包含空闲的优先级队列进行建模的。

An Analytical Model for Optimizing SOI High Voltage Device with Step Doping Profile in Drift Region

阶梯掺杂漂移区SOI高压器件浓度分布优化模型

Measurement of the fine structure of semiconductor doping profile using C V technique

半导体掺杂分布精细结构的测量技术研究

The distribution of Zn in the samples was observed. The effects of excess Zn and doping atom In on thermoelectric properties of β-Zn_4Sb_3 compound were investigated systematically.

系统地研究了在β-Zn4Sb3化合物中第二相Zn含量和分布状态以及掺杂元素In对β-Zn4Sb3基热电材料热电传输特性的影响规律。

Shallow Silicided Junctions Formed by Dopant Redistribution of As~+ and BF_2~+ Implanted into CoSi_2

CoSi2中As~+和BF2~+注入杂质再分布形成硅化物化浅结性能研究

Exact 2-D Analytical Model of Ion Implanted Dopant Redistribution During Annealing

在退火过程中离子注入杂质再分布的二维精确解析模型

The RTP temperature, the RTP time, the cooling rate, the ambient and the dopant atoms influenced the density and distribution of point defects in wafers, and then affected oxygen precipitates.

快速热处理温度、时间、降温速度、退火气氛、掺杂原子等都对硅片中点缺陷的形成及分布产生影响，进而影响氧沉淀的形成。

Several points can be concluded for the area from this paper study: ( 1) Hydrocarbon mainly occurs in the lower interval of bioclastic limestone and dolomitic limestone ( the special lithologic interval) in Es_1 Member, in which solution pores well developed;

本文研究表明，大中旺地区油气主要分布在沙一段下部的生物碎屑灰岩和云质灰岩段（特殊岩性段），储层溶蚀孔隙发育；