分层的

There will be a black line on the screen, and chromatism is very apparent above and below the line

液晶屏上出现黑线，黑线上下出现明显的色差分层

This study is focused on the vertical distribution, production and turnover of the fine roots in a broad-leaved and Korean pine climax forest of the Changbai Mountain Reserve.

采用连续土钻分层取样法，对长白山自然保护区中原始阔叶红松林细根的垂直分布、生长和周转进行了研究。

Methods The study was conducted by cluster sampling and stratified sampling.

采用整群抽样和分层抽样相结合的调查方法。

Methods Stratified cluster sampling was used to investigate villagers with questionnaire.

采用分层整群随机抽样方法，对家中有流动人口的村民进行调查。

Methods : A questionnaire survey was conducted among 411 medical staff in 15 departments by stratified cluster sampling.

采用分层随机整群抽样方法，对我院15个部门中的411在职医务人员进行问卷调查。

Methods｜ 10 106 children under 5 years old were selected by cluster sampling.

方法按照分层整群抽样的方法，抽取5岁以下儿童共10 106人，进行营养知识问卷，测量身高、体重。

Methods: The survey were designed by stratified cluster sampling.

方法采取分层整群抽样的方法。

Methods Questionnaire survey was conducted with stratified cluster sampling.

方法采用分层整群抽样的方法，进行无记名问卷调查。

Population stratification is one of the major causes of confounding in association studies.

人群分层是关联研究混杂的主要来源之一。

The special fine sand concretes are now in common use of constructional engineering in some areas in our country.

特细砂混凝土在我国一些地区的建筑工程中普遍使用，但是，在特细砂混凝土施工时，极易出现分层现象。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。