中截面

分析了各级扭矩荷载作用下，构件线扭转角、跨中截面畸变、钢筋（纵筋和箍筋）的应变、构件混凝土开裂后截面不同位置处裂缝沿纵向夹角的规律；

Under different torsion levels , the angle of twist , distortion in the middle section , steel strains , angles of inclination in different situation of section after concrete cracking have been studied .

预应力减小了转换梁跨中截面受拉区的拉应力，对转换梁其它部位拉压应力影响不大，在转换梁开裂的情况下预应力筋对裂缝的开展有限制作用。

Pre-stress reduces the tensile stress in the middle section of the tensile area , but has little effect on the stress in other parts of the transfer beam , the crack developing in tendons part have limited effect with larger vertical deflection .

但是对加固梁中截面的界限相对受压区高度ζb的取值影响较大。

However , the balance limits depth of relatively compression zone of reinforcement beam cross-section value greater impact . 4 .

通过计算发现气流角α沿流道呈近似抛物线型变化，且在流道中截面处存在一个最小气流角α（min）。

It was developed that the flow angle a value changes with approximate parabola law along the flow channel and there is the least flow angle α _ ( min ) in the cross section of the flow channel .

应用正电子发射断层（PET）快速成像簇处理法可有效地解决目前PET成像中截面断层传递成像时间过长的问题，并将传递影像形成时间从15至30min减少到仅3min。

A new clustered segmentation method has been developed for PET . It is effective to reduce the PET transmission imaging time . By this approach the acquisition time of the transmission scan can be reduced from more than 15 min to 3 min only .

蒙特卡罗模拟光子输运中截面数据的拟合

The Fitting of Section-data Within MC Simulating the Transportation of Photons

桥梁结构抗震设计中截面刚度的取值分析

Analysis of Section Stiffness Adopted in Seismic Design for Bridge Structures

型钢柱稳定设计中截面厚度的优化选择

Optimal Selection for Section Thickness in Stability Design of Shaped Steel Column

快速成型中截面轮廓数据冗余点的过滤算法研究

Study on Filtering Algorithm of Redundant Data in Section of RPM Model

快速成型制造中截面信息的计算方法研究

Research on Calculating Cross-Sectional Information in Rapid Prototyping & Manufacturing

逆向工程中截面测量数据的曲线拟合

Curve fitting based on digitized section data in reverse engineering

熔焊成型中截面填充算法及软件实现

The Study of a Hatching Algorithm for the Section Area in Welding Prototyping

沟球环件冷辗扩过程中截面变化规律

The research of section transformation rule for groove ball ring in cold ring rolling

金属件激光直接成形中截面轮廓线的生成算法研究

Study on the algorithm of sectional contour lines building for Laser Direct Metal Forming

混凝土叠合梁跨中截面的内力转移性能

Studies on the internal force transfusion behaviour for the middle cross section of RC composite beam

矩形波导中截面微带探针的分析与优化方法

Waveguide cross section plane microstrip probe

对钢筋混凝土偏压杆件偏心距增大系数中截面曲率修正系数的讨论

Evaluation of Sectional Curvature Modification Factor Included in the Eccentricity Magnifier of RC Eccentrically Compressed Members

结构和载荷相对于跨中截面非对称双鞍座卧式容器壁中的应力计算

Stress Calculation for Horizontal Vessels with Double Saddles in Which Structure and Loads Asymmetric to Mid-span Section

重复荷载降低了湿接缝的抗裂强度，而对跨中截面和中支点截面抗裂强度无明显影响。

Nevertheless the fatigue load has little effect on that of the sections of middle span and support .

桁架中截面载荷-位移曲线的屈服点可用于表征桁架的结构刚度和屈服载荷。

A yield point is included in the load-displacement curves of middle cross section of the composite truss .

叠加恒载（如自重、集中荷载）作用下跨中截面的挠度，可作为吊车梁绝对最大挠度的简化计算公式，为吊车梁设计中的刚度校核计算提供理论依据。

It can be used to provide theoretical basis to the stiffness check on the design of crane girder .

以上海浦东高速磁浮交通示范线为背景，对6种工况下道岔箱梁跨中截面、支承截面等进行了动力响应原位实测，采集道岔的加速度响应。

Through field work , the dynamic response of mid-span and support cross section under six operating modes was researched .

因此在做同类型的桥面铺装设计时，应以跨中截面作为控制截面。

When we design the pavement of the cable-stayed bridge , we should take the midspan section as the control section .

压条是塑料异型材中截面很小的一个零件，但在整体装配中起着举足轻重的角色。

Glass bead profile , one of plastic special-shaped products with small cross-section , acts an important role in the process of integrated assembling .

采用快速关闭阀门法和光纤探针法对垂直上升管中截面含气率的测量进行了试验研究。

A way of measuring the cross-sectional void fraction in vertically rising oil pipes by using quick closing valves and optical fiber probes has been researched .

根据板混凝土和钢筋的实测应变，推算跨中截面沿板跨中心线方向的弯矩分布场。

According to the measured strains of concrete and reinforcement steel , the moments distribution of the section along the half span central line direction is calculated .

结果表明，壁面粗糙度单元宽度和间隔增加时微通道中截面流速先减小后增加。

The results show that the section speed of flow reduces first and increases then when wall surface roughness width and gap increase in the micro channel .

本文简述了预应力结构设计新方法&予力技术，而予力技术中截面设计方法的精髓是索梁分载法。

This paper discusses the innovation on structural design of pre-stressed concrete-given-force , the loading method distributed to cable-beam is main thought of section design in given-force .

介绍了利用子午线弧长的直接算法来解算大地问题中截面椭圆弧长的一种直接解法。

The solution of arc length of sectional ellipse for geodetic problem , which is based on the direct algorithm of meridian arc length is introduced in this paper .

计算结果表明，试验梁的破坏为跨中截面处的受压破坏，这与试验过程中观察到的试验现象是一致的。

And the results of numerical simulation indicate that the failure of the experimental beam occurs at midspan in form of compression , which is consistent with experiment phenomenon .