截面

200 term pregnant women were enrolled. The way of parturition was determined by comparing circumcircle area of posterior triangle of exitus pelvis with fetal head cross section area and traditional method.

选择200例正常足月妊娠的孕妇，用骨盆出口后三角外接圆面积与胎头横截面积比较的方法和传统的判断试产的方法来决定孕妇分娩的方式。

The method of comparing circumcircle area of posterior triangle of exitus pelvis with fetal head cross section area is a quantitative criteria for iudging trial of labour. It's accuracy of judging trial of labour is high.

骨盆出口后三角外接圆面积与胎头横截面积比较是一个定量的判断试产的标准，判断试产的准确性高。

That of comparing circumcircle area of posterior triangle of exitus pelvis with fetal head cross section area for judging trial of labour was 5.8%.

而骨盆后三角外接圆面积与胎头横截面积比较的方法，剖宫产率为5.8%。

Now the production of main products have various specifications of aluminum plate, coil, cable foil, aluminum-plastic composite strip useful, APCP with substrates, five anti-skid plate-shaped aluminum, Orange Flower-shaped aluminum panels, aluminum pressure type tile, paint aluminum coil, aluminum curtain wall veneer substrate (thickness of 0.08m/m-40.0m/m, grades for 5052,1060,1145,1100,3003,3 A21, 8011, etc.), aluminum tube, aluminum rod, various cross-section industrial aluminum profile, aluminum heat sinks (circumcircle 10m/m-180m/m, Grade 1060,6061,6063,6 A02, 3A21, etc.).

现已生产主要产品有各种规格铝板、铝卷板、电缆箔、铝塑复合管用带材、铝塑复合板用基板、五条形铝防滑板、桔皮形铝压花板、铝压型瓦、喷涂铝卷板、铝单板幕墙基板(厚度为0.08m/m—40.0m/m，牌号为5052、1060、1145、1100、3003、3A21、8011等)、铝管、铝棒、各种截面工业铝型材、铝型材散热片(外接圆10m/m-180m/m，牌号1060、6061、6063、6A02、3A21等)。

We first use perturbative QCD theory to calculate the photon production cross section in nu- cleon - nucleon collisions at a center-of-mass energy of a few tens of GeV, taking into account the intrinsic parton transverse mo- mentum distribution and the next-to-leading-order contributions.

首先我们用微扰量子色动力学理论计算质心能量几十GeV核子核子碰撞中光子产生截面，同时考虑了部分子内禀横动量分布和二级费曼图的贡献。

Don't forget to join that cross section to be the closed curve.

别忘了加入该截面是闭合曲线。

Solid section is defined by a set of entities that form a closed loop.

实体截面是由一组封闭的体素来定义的，如线条，单元或者面。

Thin-walled tube with closed section is commonly used in large space structures. In order to calculate the time-dependent temperature fields in these structures subjected to heat flux and emitting thermal energy by radiation, the temperature gradients along both the axes and circumferences of the tubes should be considered.

薄壁闭口管是大型空间结构中的常用元件，为准确地计算以其为组件的空间结构在太空辐射换热条件下的瞬态温度场，必须同时考虑沿管轴向与横截面周向两个方向的温度梯度。

Firstly establishing mechanical model of casing structure , and then processing casing forces analysis using space finite-element method and superposition method(put structure stress and outer force stress together), it computes the stress of casing in three dimensions, and gets the internal force and transmutation. The structure of casing-coadjutor is computed overlaply and the question of contact is solved. In the aspect of design, it provides the mixed integer-discrete variable optimization method of casing cross section size and coadjutor layout.

本文就上述两个问题的最优化设计展开研究，首先建立了套管结构的力学模型，进行套管的受力分析，用了空间有限元法和叠加法(结构应力和外载应力相叠加)，对套管进行三维计算，确定结构的内力和变形，对套管—扶正器结构进行整体的叠代计算，解决接触问题；在设计方面，提出了解决套管截面尺寸参数和扶正器布局的混合整数—离散变量优化方法。

The part of a coal seam that is being cut.

正在被开采的煤层截面。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。