截面

In chapter 4 and chapter 5 we focus on spheres with positive sectional curvatures.

在第四章和第五章中我们重点考虑正截面曲率的球面。

The free end of one (1) of the arms (1, 3) is provided with a securement device for the end of a strap tongue (11) comprising a guide (8) having in cross-section a general U shape, an axle (9) connecting the two lateral wings of the guide (8) and holding members (10) adapted to coact with the upper surface of the tongue (11) of the strap.

其中上述臂(1，3)中的一个臂(1)的自由端设有一个用于定位表带舌片(11)的装置，该定位装置包括横截面基本为U形的导向件(8)、用于连接导向件(8)对应两翼的轴(9)、以及适于与表带舌片(11)的上表面相互配合的固定元件(10)。

The composition of the SiGe thin films were controlled by changing the ratio of the area of silicon and germanium. By changing the parameters of substrate temperature and annealing temperature, we examined the microstructure, composition, crystallinity, electrical and thermoelectric properties by field emission scanning electron microscope, X-ray photoelectric spectroscopy, secondary ion mass spectrometer, X-ray diffraction, Hall effect and Seebeck coefficient measurement.

利用改变矽锗靶材面积比例进行薄膜成份的控制，并藉由改变基板温度以及退火温度之制程参数，利用场发射扫描式电子显微镜、化学分析电子能谱仪、二次离子质谱仪、X光绕射仪、霍尔效应量测仪以及自组装之热电量测系统作为分析仪器，分别量测薄膜表面形貌、横截面、成分、结晶性质、电性以及Seebeck系数等特性。

On the basis of the calculation of the internal self conduction of a long round shaped conductor,the characteristic and the adapability of the three kinds of calculation methods are introduced in this paper,which can caculate the self inductance of conductor with a section.

以圆柱导体的内自感系数的计算为例，阐述了关于有横截面积的导体的自感系数的三种计算方法的各自特点及其适用性。

A popular candidate for CDM is the neutralino, for which the self-annihilation cross-section is large.

冷暗物质的一个流行的候选者是中性超对称粒子，这种粒子的自湮灭截面非常大。

This is why speedboats rise up, and why most boats have flat or semicircular cross-sectional profiles.

这就是为什么快速帆船能升起来和为什么大多数的船采用平坦或半圆形的横截面。

The reagent molecule CH〓 that is consisted of an H atom and a CH〓 fragment which is treated as a semirigid vibrating rotor.

我们计算得到了不同初始振转态的总反应几率，积分反应截面和速率常数。

When the medium consistency pulp flows through the upper head, due to the forces from section shrinking and top of head, the residence can happen inside the elliptical dished head and semispherical head.

从实验情况看，通过一段过渡段，截面上的流动不均匀现象会有所稳定，在我们的实验装置中过渡段的长度约为600－800mm。

The variable section permanent magnet is decomposed into a series of magnetic circuit with lumped parameters in this paper.

利用分段法将变截面永磁体分解为一系列具有集总参数的磁路，推导了两种凸度系数下的永磁磁路的通用计算公式，该方法适合于非线性磁阻的计算机编程计算。

Recent years as development of the computer and software, it becomes reality using numeric simulation to research grouting in clay. Using the software of PFC2D, the grouting in clay is lucubrated and such achievements are reached: Grouting technologies in existence grouting material and serosity are studied and rational methods are put forward in choosing grouting technology and serosity.(2) Base on numeric simulation biax test a method is explored to simulate clay with PFC2D.(3) A method is explored to simulate grouting using PFC2D.(4) The relation between serosity pressure and diffuseness of grouting in clay with different initial stress is studied.(5) The stress transformation of clay is studied during grouting.(6) The stress distribution is studied under different serosity pressure.(7) The normal stresss and shear stresss at any section are studied.

近年来随着计算技术的发展，使得采用数值模拟的方式研究均质土体中的注浆成为可能，本文则利用离散元程序PFC2D对均质土体中注浆进行了研究，主要做了以下几方面的工作：(1)研究了现有注浆加固技术、注浆材料以及浆液的性质，阐述了合理选择注浆方式以及浆液的方法；(2)采用数值双轴实验，探索了应用离散元模型模拟土体的方法：(3)探索了采用颗粒流程序进行注浆数值模拟的方法途径；(4)研究了在粘土中注浆不同侧向土压力条件下浆液扩散范围与注浆压力规律；(5)研究了注浆过程中不同阶段土体中压应力的变化；(6)研究了不同注浆压力对土体应力分稚的影响：(7)研究了注浆过程中土体中任一截面处正应力与剪应力的对比关系。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷