轴向的

The influence law of feed rate of idle roll on the quality of end face of ring,axial width spread ratio,roll force,roll moment and metal flow characteristic in cold ring rolling process has been explored through the FEM numerical simulation of the ring with rectangular cross-section based on the elastic-plastic dynamic explicit FEM under the Abaqus software environment.

基于Abaqus/Explicit提供的显式动力学有限元算法，对矩形截面环件冷辗扩进行了有限元数值模拟，揭示了芯辊进给速度对环件冷辗扩过程中环件端面质量、轴向宽展率、辗扩力、辗扩力矩以及金属流动特性的影响规律，并从金属塑性成形原理和塑性加工力学等角度对这些规律进行了合理的解释，从而获得了进给速度对冷辗扩成形的影响规律，为环件冷辗扩在实际应用中进给速度的选择提供了依据，对揭示冷辗扩成形机理也具有十分重要的意义。

The radial density profile displays that positions of gas shell varies with axial position,and the gas densities on axis increases as the distance from nozzle increases.

气流的径向密度剖面显示，气体壳层的位置随轴向位置的变化而存在差异，并且随着到喷嘴距离的增加，轴心处的气流密度不断增加。

In addition to the two axial ligations provided by His18 and Met80, the hydrogen bond and hydrophobic interactions between the heme and the protein polypeptide, the heme also covalently linked to the protein matrix through two thioether bonds which are formed between vinyl groups of the heme and cysteine residues of a classic Cys-Xaa-Xaa-Cys-His heme-binding motif of the polypeptide chain.

Cyt c是血红素蛋白中电子传递蛋白的典型代表，其辅基heme与蛋白肽链的结合除了来自heme轴向配体组氨酸(His18)和甲硫氨酸(Met80)的配位作用、氢键和疏水相互作用等非共价键作用方式外，血红辅基heme的两个乙烯基还与蛋白肽链上的结构片段域Cys-Xaa-Xaa-Cys-His中的两个半胱氨酸形成硫醚键以共价键方式相结合。

Single-mode fiber-optical confocal scanning laser microscopy is a new scanning microscopic imaging system, which is based on the modern optics technology and electronics technology. The characteristic of point source and point detector removes the out-of-focus light that makes the image become blur. Therefore, it has excellent resolution in axial directions, and can achieve 3-D imaging of microorganism.

单模光纤激光共焦扫描显微镜是现代光电技术结合的新型扫描显微成像系统，其独特的点照明与点探测机理排除了离焦光线对图像造成的模糊和斑点影响，因而具有出众的轴向分辨率，能够实现对微小物体的三维成像。

Aimed at all kinds of damage phenomena in the sleeve usage of oil-film bearing in the backup roll of Baoshan 1580 hot strip mill,during the process of elastic conjunction between sleeve and rollneck,deformation and load properties are quantitatively analyzed by boundary element method for 3D elastic and plastic contact problems.

针对宝钢1580热连轧机精轧机组支承辊油膜轴承锥套使用中存在的各类损伤问题，利用三维弹塑性接触问题边界元法定量分析了轧机油膜轴承锥套与轧辊辊颈过盈装配过程中的变形和载荷特性，得出了装拆过程中不同的胀型压力和轴向推力条件下锥套接触压力延母线方向的变化规律，同时锥套端部和密封槽附近接触压力峰值的存在是加速锥套损伤及降低其使用寿命的重要原因。

The present invention is one multifunctional electric hammer with the functions of percussion, percussion drilling, drilling, etc. and aims at facilitates the operation of multifunctional electric hammer. The improved multifunctional electric hammer includes front end parts and back end parts.

本发明涉及具有锤、锤钻、钻等功能的多功能电锤，解决的是现有的多功能电锤两个旋钮组合操作多功能的转换，操作不方便和其传动轴沿轴向来回窜动损坏前端壳体的问题。

To reveal aft end internal flow feature of a solid rocket motor with submerged nozzle, a two dimension cold flow test model with rectangular channel was designed The cold gas simulation was based on geometric similarity and aerodynamic analogy Mean and fluctuating velocity field was measured using phase doppler particle analyzer It showed that the flow separates at upstream of the submerged nozzle and reattaches on the tip of the nozzle nose A relatively steady recirculation zone formed in...

为了揭示含潜入喷管的固体火箭发动机尾部流动特征，按照几何相近和气动相似原则设计了通道为矩形的二维冷流实验模型，利用相位多普勒粒子分析仪对燃烧室尾部气流的时均速度和湍流脉动速度进行了测量。实验结果表明气流在潜入喷管入口上游发生分离，再附点位于喷管前端部外侧，背壁空腔内形成一个较为稳定的回流区，流场的轴向和横向湍流强度都比较大

A study in form and geometry, the plaza continues the form language of the axial connection and extrudes it into the third dimension through the addition of precast concrete seat walls set in plinths of decomposed granite and surrounded by mixed understory plantings.

研究的形式和几何，继续在广场的形式语言和挤出轴向连接到第三个层面通过增加预制混凝土墙壁座位设置在plinths的风化花岗岩，四周是混合林下种植。两个大的白色长廊充当铺路的主要东西流通整个网站。

With ASFC technology, it shall be possible to increase efficiently fan/compressor pressure ratio, but also reduce the axial length and weight of the engine a well as the noise of fans. Meanwhile, it increases the flexibility sad payload of the flight vehicle, thus reducing the fuel consumption.

这一技术的采用能够大幅度提高压比，减少发动机的轴向长度和重量，降低风扇的噪音；在做功能力增加重量减轻的同时，能够增加飞行器的灵活性以及有效载荷，从而减少燃油消耗。

Theory basis provided to solve the problem of vibrationof the universl coupling of three-crank type and to increase the transmission of the universalcoupling of three-crank type.

由于三曲柄式万向联轴器的输人构件上各曲柄杆的轴线分别与输出构件上相应的导向滚道槽轴线相交，所以可根据其相交条件分析其运动关系。图1和图2分别表示三个曲柄杆及三条导向滚道槽轴线在图中所建立的坐标系中的位置tl。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。