查询词典 stratified sample

Epilimnion In a stratified lake (a lake in which there are distinct layers of different temperature densities), the upper layer of warm water.

浅表层：在一个层结湖中（具有明显不同温度密度分层的湖泊），温水层的最上层被称为浅表层。

The stratified self-calibration based on modulus constraint is used to get 3D information from Euclidean space. And some optimization algorithms are used to reduce error impact.

采用基于模约束的摄像机分层自标定方法得到特征在欧式空间下的三维信息，并通过多种优化方法减少误差的影响。

Positive association were still remained for two locus that MNAT1-rs973063 and PCNA-rs25406 and lung cancer risk even after 1000 times permutation test.During the stratified analysis,we revealed that that several genes in the NER pathway could interact with age,gender,family cancer history and smoking status.

在进行了多重校正后，有两个位点仍显示出关联显著性：MNAT1-rs973063(p=0.02)，PCNA-rs25406(p=0.03)；在随后进行的分层分析中，我们发现NER通路多个基因分别和年龄、性别、肿瘤家族史以及吸烟状况之间存在互作，提示该通路基因位点可能主要是通过和环境交互作用产生效应；我们还进行了单倍型的分析，结果发现PCNA和RPA1两个基因上的单倍型和肺癌易感性相关。

The stratified flow, slug flow and asymmetry annular flow upstream become symmetry annular flow with uniform film thickness after the spin generating element. The liquid extraction ratio is only determined by the diameter and number of the sampling holes and independent of gas and liquid flow rate of the main pipe, and the gas extraction ratio is mainly controlled by the liquid flow rate of the main flow loop.

分析表明，取样流体中的液相质量流量与主流体液相质量流量的比值主要取决于取样孔的数目和大小，而取样流体中的气相质量流量与主流体气相质量流量的比值则与主管路液相流量有关。

The flexible stratified gunite taking double-rope as the frame structure is combined with high intensity grouted bolt to form the wall rock so as to raise the intensity of soft rock.

采用以双层钢丝绳为骨架的柔性喷层结构与以锚注高强度水泥浆液在稳压状态下胶结围岩，提高软弱岩、煤体自身强度，以监测监控为手段，根据应力变化和巷道移变速度，对围岩体内反复注浆加固，使岩体成为支护结构主体，实现了真正意义上的主动支护，并在工程中进行了实践。

I propose that sex-based harassment is fundamentally motivated by the harasser's desire to protect or enhance his or her own sex-based status, a desire that stems from the fact that social status is stratified by a system of gender hierarchy.

我认为基于性别的骚扰，根本动机是骚扰者保护或提高他或她自己的性别为基础的地位的愿望，一个基于这样事实的愿望，即社会地位是根据一个系统的性别等级制度来分层的。

a hereditary social class among Hindus; stratified according to ritual purity

a。 没有社会阶级的，不属于任何阶级的

Hindu a hereditary social class stratified according to ritual purity.

根据宗教仪式的纯度分层的世袭阶级。

A stratified flow in a horizontal pipe represents the most important form of high-concentration powder transport flow.

高浓度粉体输送由于人们对其优越性认识的深入而得到了广泛的研究。

Using the characteristic line theory of hyperbolic partial differential equations,relations between the reflected signals and the dielectric parameters of the stratified media are analyzed.

提要 本文根据双曲型偏微分方程的特征线理论分析了分层媒质参数与时域反射信号的因果关系，研究了基于时域反射数据的分层媒质的参数反演的离散化模型。

But GST= 0.156, Nm=1. 588. As a result, the foundation of Youyongchi Avicennia marina population was the result of the migration of hypocotyles and human factors.

这项工作可以为海岸防护林中新引进种类的判定以及为研究种群建立者效应方法的确定提供科学依据。

The two-dimensional CDRC-ADI-FDTD update equations for collision unmagnetized plasma are induced. The unconditional stability of the CDRC-ADI-FDTD formulation for collision unmagnetized plasma is obtained by the examples.

推导了碰撞非磁化等离子体中的二维CDRC-ADI-FDTD迭代公式，并用算例验证了碰撞非磁化等离子体CDRC-ADI-FDTD算法也是无条件稳定的。