截面

The R/C frame structures were modeled with bar system and the column was modeled with multi-springs. The concrete and steel bars in column were considered as springs in order to reflect the coupling influence between the axial force and the moment-rotation relationship, the hysteresis of springs is based on the material properties and the rotation of column section is followed the plane assumption. The moment-rotation of beam section was modeled with trilinear hysteresis model.

混凝土框架分析模型采用杆系模型，其中柱采用多弹簧模型，柱端的混凝土和钢筋作为弹簧考虑以便反映柱轴力与弯矩－曲率的耦合关系，弹簧的滞回关系根据材料特性确定，柱截面的转动符合平截面假定，梁截面弯矩－转角关系采用三折线滞回关系模型。

If the instrument is subjected to torsional loads, the shear stress at every cross section is proportional to the torque and the radical distance from the bars axis, and is inverse proportional to the polar moment of inertia of the cross section.

扭转载荷下，横截面某点的切应力与扭距成正比，与到截面中心的距离也成正比，与横截面的极惯性距成反比。

This model analyses the controlling sections of moment of flexure, strain, shear, displacement against spar boom and pier shaft., and matches the measured value and calculated value of crosswise enlarge coefficient and shear lag phenomena. The testing section allocation against combination and pier ground is approached.

并对高墩大跨径连续刚构桥梁的墩梁结合处、墩底等受力比较复杂的区段进行截面的定位研究，由此提出此类高墩大跨径预应力连续刚构桥梁进行荷载试验时，纵桥向选取测试截面及横截面布设测点方式的一般建议。

The dissertation mainly has a research on beam shape of concrete transfer floor. The load form of transfer floor is complicated and the stress-strain changes greatly, so the structure design could be divided into the calculations of rectangular sections in bending, incline plane in shearing, and shear wall structure.

本文以目前广泛使用的梁式钢筋混凝土转换层为研究对象，针对梁式转换层受力复杂，应力应变变化大，重点研究了深梁截面设计法的正截面受弯、斜截面受剪及转换层剪力墙结构的计算，并对转换层结构构造设计进行了分析。

Based on laser Doppler effect, single section rotational speed of rotating shaft was measured.

基于激光多普勒效应测量转轴单截面转速的原理，通过测量双截面的转速进而求两截面的转速差。

In order to discuss the possibility of torpedo(diameter: 534 mm) swim-out launching by the submarine torpedo tube in service, an interior trajectory model was set up in consideration of different resistances and the fact that the area ratio of the circular clearance cross-section of torpedo tube in service to the torpedo cross-section is small. The pressure difference of seawater compensation was defined and added to the model as a resistance parameter, and the launching process was analyzed.

为探讨现役潜艇鱼雷发射管自航发射534口径鱼雷的可能性，针对现役发射管环形间隙截面积与鱼雷横截面之比较小的实际情况，综合考虑了各种阻力的影响，分析了等截面管自航发射过程，定义并引入了补水压差作为阻力因素，重新建立了内弹道模型。

The density of bone mineral substance and femoral geometry size and polar moment of inertia and torsional section modulus and rectangular moment of intertia and rectangular section modulus and biomechanics capabilities were determined.

连续给药90 d后处死大鼠，测定股骨的几何尺寸、极惯性矩、抗扭截面模数、截面惯性矩、抗弯截面模数、骨矿密度和股骨的生物力学试验。

It makes centering theory from circle section to ellipse section, which approaches to the section of turnery log.

使得定心理论从圆截面发展到椭圆截面，更接近于实际旋切原木的实际截面形状。

With set2 paprameters, at √s=1.17 TeV the tree level and EW corrected sections of γγ-t2t2 increase by 81% and 78% respectively, compared with unpolarized tree level and EW corrected sections. Therefore, in some gaugino-like parameters, the effects of the photon polarization to squark pair production can improve the efficiency of detection at future linear colliders.

t2t2的set2参数条件下，在1.17 TeV处，树图截面和电弱修正的截面分别增加了81%和78%，因此在未来的直线对撞机上以γγ对撞模式产生标量夸克对时，在某些特定的类gaugino的参数条件下，考虑到光子的极化效应对其截面的影响将有助于提高对撞机的探测效率。

It is concluded that the walking beam with Ⅰ shaped section requires less material than that with box shaped section.

通过优化计算，确定了箱形等截面游梁和工字形等截面游梁的截面尺寸参数。

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％。