横截面

Polyester fibers have a smooth, uniform surface with no striations and are circular in cross section.

聚酯纤维表面均匀光滑，无条纹，横截面呈圆形。

Aluminum alloy worktable, has profiles framework, the above has units plate,two sides and back having hoarding,in frontof the framework,there are doors, drawers, etc., the side of the profiles, along the profiles' direction have trough-shaped cross section, the framework of the vertical connections between profiles useful screw connected straight dihedral angle-shaped corner connector and square plate-shaped nut.

优点advantages；铝合金工作台，有型材框架，框架的上面有台板，两侧和背面可有围板，框架前面有柜门、抽屉等，型材的侧面上、沿型材长度方向有内腔横截面是工字型槽，框架垂直连接的型材间有用螺钉相连的直二面角形的弯角连接件和方板形螺母。

Based on the model calculation,an FAPP ventilation system was madein Beijing Poultry Breeding Company.Through running test and a series ofphysical and chemical characteristic measurement,the distribution of flowspeed in length,and breadth was given.The average temperatureand rel-ative humidity,the amplitude of T and RH per day of 30 days in winter,and instantaneous T and RH in 24 hours wre measured in FAPP house,com-paring house and outside,the result shew that FAPP ventilation system wassuperior to comparing house.The dust concentration and microrganism con-tent were also measured in the rearing piriod of poultry,the value in FAPPhouse was junior to comparing house.

在模拟结果的基础上，设计了一套FAPP通风系统并在北京市种禽公司原种后备场种雏舍进行了实际运行试验和一系列的理化特性参数的测试，试验给出的正压管道式送风舍纵轴方向及横截面上气流速度的分布规律与模拟结果相吻合；通过对FAPP舍、对照舍及舍外冬季30天的逐日平均温湿度、温湿度振幅以及24小时瞬时温湿度的测试分析，显示了FAPP通风系统在冬季通风中明显优于负压通风系统；在雏鸡全周期的饲养过程中还对舍内粉尘与微生物的含量进行了测试，FAPP舍的值明显低于对照舍，这一结果为FAPP通风系统的推广应用提供了实验依据。

Microfiber Products detail: Microfiber refers to the so-called 0.4uM of the micro-diameter fibers, its fiber silk degrees only 1 / 10 special wedge-shaped cross-section to enable it to more effectively capture even a few microns of dust particles, decontamination, to oil the effect is very obvious. 75:25 of polyester / nylon ratio, making material is extremely soft, on the swab surface without any harm, even in the field of high precision, such as lens coating, large scale integrated circuit manufacturing process can also be assured that the use of its water volume, water absorption speed is ordinary cotton fabric for more than 5 times.

所谓超细纤维是指直径0.4uM的微纤维，其纤维度仅为真丝1/10特殊楔型横截面，使它能更有效地捕获甚至几微米的尘埃微粒，除污、去油的效果十分明显。75：25的聚脂/耐纶比，使得质料极其柔软，对被拭物表面无任何伤害，即使在高精密领域里如镀膜镜头、大规模集成电路生产过程中也能够放心使用，其吸水量、吸水速度是普通棉织物的5倍以上。

By simplifying the mechanical model,constitutive relation defined in principal direction based on elasticity theory with different moduli was rebuilt in common ordinates,and tension-compression area was divided.

通过合理简化模型，将不同模量弹性理论中定义在主坐标系下的本构关系重新建立在普通坐标系下，进行拉压分区，从而推导了考虑自重且顶部有水平推力的不同模量弯压柱近似弹性力学解答，并由横截面上正应力为零判定了中性层的形状和位置。

By means of scanning auger microscopy and scanning electron microscopy , the composition of initial deposited surface, cross-section of deposit and surface after peeling off the EN coating was analyzed. The adhesion of EN deposit was evaluated with heat-quench and pull-off tests.

利用扫描俄歇显微镜和扫描电镜等手段分析了初始沉积表面、镀层横截面和镀层剥离表面的成分，采用热震和拉开试验定性测定了镀层的结合强度。

Twists of two PET filament/wool and PET staple Sirofil composite yarns are tested by the longest-untwisted yarn method which is proposed by author here, and compared with the results tested by twist break method and untwist-retwist method.

捻度是纺织纱线重要的结构因素或特征。捻度与纱线的许多性质有关，例如纱线的拉伸强度、纱线纵向和横截面形态、尺寸和结构稳定性、纱线的光泽、手感风格等。无论是短纤纱、长丝纱，还是长丝/短纤维复合纱都是如此。

The latter played a key role to the formation of the final Si-NPA.2. Si-NPA is composed of large quantities of well-separated, quasi-identical siliconpillars with a cross section size of ~1.5 m. These silicon pillars are uniformlyarrayed and perpendicular to the surface.

新鲜制备的Si-NPA具备下述结构特点：(1)Si-NPA是具有明显的尺度结构层次的微米／纳米结构复合体系；(2)在微米层次上，Si-NPA由大范围均匀排列的、彼此很好分离的硅柱组成，柱的横截面尺寸约为1.5nm；(3)在纳米层次上，Si-NPA中的硅柱均呈多孔状，孔径在～20-40nm，孔壁由粒径约为5nm的硅纳米晶粒组成。

The cross section topological structures of leading edge vortex over a delta wing in process of vortex breakdown evolution is investigated numerically.

研究了低速流中三角翼背风面涡破裂演化过程中前缘涡的横截面拓扑结构。

Objective:In order to study the site of nasal parameters,nasal minimal cross-sectional area,nasal cavity volume,nasal resistance and the relations among them.

张涛目的：研究广东地区健康青年人鼻声反射参数：鼻限流节段的部位、鼻腔最小横截面积、鼻腔容积和鼻阻力的正常值，以及它们之间的关系。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。