查询词典 stratified

Stratified sampling design is applied in obtaining an accurate representation of the population by grouping the data into nonoverlapping groups, for example gender or income level, then selecting a simple random sample within each group.

分层抽样是将总体分成若干个组分，在每个组分中进行简单随机抽样，其原则在于将类似的样本归在一个组里面。

The results show that the PSD fractal dimension of Light chestnut soil, Yellow cultivated loessial soil, Orthic dark locssial soil, Orthic cinnamon soil (stratified old manured loessial soil), Fluvo-aquic soil, Orthic gray desert soil, Orthic black soil, Orthic yellow-brown earth, Orthic yellow earth, Orthic ted earth and Orthic lateritic red...

结合上壤颗粒表面分形特性及土壤粘附的基本原理，探讨了土壤PSD分维对土壤—固体表面粘附行为的影响。PSD分维高的土壤与固体表面粘附力大，与固体表面发生明显粘附的起始含水量提高，发生明显粘附的含水量区间增宽。

Stratified, polycentric and prospective cohort study can avoid the shortcomings of randomized controlled trial and cohort study.

分层多中心前瞻性队列研究，可以避免随机对照试验的实施困难和队列研究控制偏倚差的缺点，可作为中医辨证论治临床疗效评价的一种探索性方法。

As the last Wisconsin glacier retreated,postglacial lakes were formed in the southeastern and northwestern parts of the Hudson Lowland(including the southern part of James Bay Lowland)with stratified silt and sand deposited over the upper till.

作为最后威斯康星冰川后退，后期形成的湖泊在东南部和西北部地区的哈德逊低地（包括南部的詹姆斯湾低地）分层淤泥和沙子沉积在上游到。

Stratified information integrated conceptual mechanism model Information integration is very important to construct a sharable product information model and to establish an efficient inference mechanism.

层次化信息集成的机构概念模型产品信息的共享与重用以及高效的推理机制的建立，其关键在于产品信息的集成。

From the Privileged schooling in primitive society, to Humanistic schooling model, to the Functioned schooling model meeting the demand of industry society, to the Innovated schooling model for the development of informative society, the evolution is not supersedable, but a stratified integration, which is a process coordinating the development of human beings, society and the education.

学校教育模式在人类社会发展中经历了早期为特权服务的学校教育，到人文型学校教育模式，以至演变到为工业社会服务培养科技人的功用型学校教育模式，再演变到为现代信息化社会服务的创新型学校教育模式，这种演变不是替代关系，而是具有层级整合意义。

In the software aspect of 3DP control system, include solid model stratified slicing module, 2D slice data processing module, ink-jet control module, motion control module, etc. Slice module is based on the color STL model output from Magics RP software, its output synusia data is TIFF、JPG、BMP format of CMYK color images. 2D slice data processing module use RIP and dithering algorithm to process 2D color images, thereby achieve the color image information correspond with each micro-nozzle. Ink-jet control module's function is to control each nozzle's on/of.

其中实体模型分层切片模块是基于Magics RP软件输出的彩色STL模型进行的，其输出层片数据为TIFF、JPG、BMP的CMYK格式的彩色图像；二维切片数据处理模块通过RIP算法和抖动算法对一系列二维彩色图像进行数据解析，从而实现图像的色彩信息与每个微细喷嘴的一一对应；喷墨控制模块的功能是控制每个微细喷嘴的喷射与关闭；运动控制模块则负责所有加工成型运动的协调运行。

This paper presents a nonlinear analysis of the stresses in jointed rocks around a subterranean structure by the initial stress method. In this analysis, rocks with a parallel set of joints of a given predetermined orientation are idealized as a stratified. material with no shear between the strata j and rocks with a random set of joints are idealized as a tensionless material.

本文将具有一组定向节理的岩体理想化为层面不抗剪材料，将具有随机分布节理的岩体理想化为不抗张材料，采用初应力法，对节理岩体内地下工程围岩应力做有限元非线性分析，编制了通用程序，并根据某水封石洞油库的实际参数作了算例。

Supported by GIS, maps were overlapped of normalized vegetation index, topograph, soils, government districts, yearly rainfall, yearly mean temperature, accumulated temperature during growing period of wheat, so as that ecological layers for wheat were stratified objectively and a base graph of non wheat image cell was plotted for average year.

在地理信息系统支持下，将处理好的归一化植被指数图与地形图、土壤质地图、政区图、年降水量图、年平均气温图、小麦生育期积温图等背景图件叠加，进行比较客观的小麦遥感生态分层，并制成常年非麦象元分布底图。

Corneal epithelial cells formed unilaminar and stratified layers and cellular joins.

角膜上皮细胞可形成单层和复层，细胞间连接紧密。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失