截面

In order to strengthen the structure s total stability,the inner force of the bearing cable and stable cable and the truss section are adjusted reiteratively,and the structural strength and stiffness optimal design is also done.

为了加强结构在风荷载作用下的整体稳定，通过反复调整承重索和稳定索的内力和桁架的截面，对结构进行了强度和刚度的优化设计。

Two fundamental concepts are introduced:exact Yang-Mills equation and characteristic transformation of Yang- Mills gauge fields.

然后构造了一类线性微分变换，称之为SU(3)规范场的示性变换，它具体给出联络和截面之间的微分关系。

At the same translational energy, the cross-section increases with the rising of the rotational quantum number j, and declines with the rising of the quantum number m. In the last, we find that the reaction rate constant and the cross-section have the similar rule for the quantum numbers j and m.

最后比较各个量子态的速率常数，我们也看出随量子数j的增加，速率常数升高，随量子数m的增加速率常数降低，这些曲线在我们的图中都呈现相似的下降趋势，这和散射截面的规律是吻合的。

The N + OH reaction system has no energy barrier in the entrance channel on the PES; instead, there are double wells along the reaction path, which leads to that the integral reaction cross sections are not strongly dependent on either translational energy or initial rotational and vibrational state.

计算还显示，由于N+OH反应入口谷没有能垒，而沿着最小能量反应路径有两个势阱，因此反应的积分截面并不强烈依赖平动能和反应物分子的初始振转态。

Carry out the hardness test in accordance with BS 427: Part 1 on the prepared surface of a transverse micro section taken from the approximate centre of the specimen.

对从样本中心取下的横向微截面的表面按BS 427：第1部分进行硬度测试。

Via studying elastic torsion with trapezium sections, the results obtained by this method could approach the ones obtained by finite method.

通过研究梯形截面弹性体的扭转问题，表明结果与有限元数值计算结果很接近，该方法具有较高的精度，为边值问题的研究和求解提供了一种新的数学方法。

The section of the embankment model was symmetric trapezium and the clay was its filling.

路堤模型采用梯形对称截面，并以粘土作为填料制作。

Whatever the case, the shape of the cross-section of the said sphenoid part is either of an isosceles spherical trapezium or of any spherical quadrilateral.

无论哪种情况，楔形体的横截面形状要么是有两条边相同的球形四边形，要么是任意球形四边形。

The effect of cross section dimension on propagation characteristics in trapezoid tunnel is analyzed using finite element method.

摘要采用有限元法分析了梯形隧道中横截面尺寸对传输特性的影响。

The method is applied to study the diffraction characteristics of dielectric gratings with rectangular and trapezoid shapes.

给出了光栅单元截面为矩形和梯形的算例。

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％。