分层

The effect of shear strength stratification on the slope stability is discussed.

研究结果表明，对于膨胀土边坡，强度的分层是合理的，也是必要的。

Based on the problems of the change of erosion types on the slope, we used a new REE tracer method, by placing different rare earth elements of different soil depth across a slope in an indoor plot, simulated rainfall and INAA were applied to study sheet erosion changing to rill erosion on slope land.

提出并建立了一种新的利用REE元素研究坡面土壤侵蚀的方法根据坡面不同侵蚀方式演变过程定量分析存在问题，提出并建立了人为沿坡面垂直分层布设不同的REE示踪元素，利用室内人工模拟降雨试验和中子活化分析相结合的方法研究坡面侵蚀演变过程。

Then they put on this transparent sheet of layered glass.

然后，他们把这种分层的透明玻璃板材放在上面。

Since the layered silicate mineral is an inorganic material, the fuel cell can be operated at high temperature.

由于分层的硅酸盐矿物是无机材料，燃料电池可以在高温下工作。

Layered described Cambrian - the Triassic formation, with the period of tectonic events on the sedimentary layers and structural features several important period of formation is not integrated interface, and Tajikistan low uplift tectonic evolution into paleouplift a period ( As early as the late Ordovician), paleouplift stereotypes period, the uplift of ancient period (Silurian Period to the Devonian), partial adjustment period in four phases.

分层描述寒武系—三叠系地层，结合各期构造事件研究了各层沉积构造特征及几期重要的地层不整合界面，并将塔中低凸起构造演化分为古隆起形成期、古隆起定型期、古隆起改造期、局部调整期四个阶段。

Experiment and flow visualization are conducted in a water-filled cavity which cover the range of Ra=1×10〓----6×10〓 and Pr=3. 3---6. 5. Similarity theorem is applied in analytical investigations. And core region stratification effects to heat transfer are studied. By using scale analysis, temperature and velocity profiles in turbulent natural convection boundary layer are obtained. The results reveals that for turbulent natural convection in enclosures, the bulk of the cavity fluid is essentially statement with thermally stratified temperature and the only substantial motion is that in the boundary layer along four side walls.

在实验方面，作者在高Ra范围内（Ra〓=1×10'~Ra〓=6×10〓，Pr=3.3~6.3）对封闭空间实验台以蒸馏水为介质进行了换热实验与流动显示；在理论分析方面，作者采用相似原理导出了分析解；研究了核心区温度分层规律及其对换热的影响；另外还运用尺度分析法探讨了紊流自然对流边界层温度与速度分布。

Most commonly, it begins with random cluster sampling and then applies simple random sampling or stratified random sampling

最常见的是，从随机整群抽样开始，然后应用简单随机抽样或者分层随机抽样

Stratified random sampling and simple random sampling methods were used to select sample from 14 counties.

通过分层抽样和单纯随机抽样相结合的方法，抽取昆明市14个县的部分参合农民进行问卷调查。

Methods The integration of simple random sampling and stratified sampling was adopted to select 480 soldiers of 5 different branches of the military forces stationed in Jinan as study objects.

采用简单随机抽样和分层抽样相结合的方法抽取驻济5个兵种不同的部队，计480名军人作为研究对象。

In principle, layered random sampling and simple random sampling were used.

取样原则采分层随机抽样和简单随机抽样方式，共抽取12所学校，抽样得70个班级，含68位教师与其班级学生共754人，回收的有效样本共计70班，合计68位级任教师与739位学生。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。