轴向

This method is clear in concept, calculated simply , results accurately in calculation, and used on site conveniently, which provides scientific fact for the correct discription of casing string flexural equation ,accurate calculation of casing flexural deform, and reasonable determination of centralizer position.

但这种计算模式都是基于轴向力为零，只考虑了套管自重引起的横向均布荷载对挠曲变形产生的影响，因此，这种方法仅仅适用于计算"中和点"附近套管柱挠曲变形量这种特殊情况。更加普遍的情况是，套管不仅受自重引起的横向分力的影响，还受轴向力的作用。

Based on Chen's model about axial flow induced vibration of a rod bundle in an unbounded domain, a mathematical model concemed with circular domain is presented, and the expressions for fluid forces are given in detail.

三、基于Chen关于无界域轴向流动中棒束流致振动的模型，推导了有界域棒束轴向流致振动的数学模型，得到了关于流体力的表达式。

By the comparison of electronic spectrum and Z-scan of different substituted MPc and MNc, the peripheral substituted MNc had better nonlinear optical properties. It provided a new method to the improvement of the performance of reverse saturable absorption of the laser protective materials.

对不同金属轴向取代的萘酞菁化合物的电子光谱和Z-扫描进行了横向比较，并对相同取代基、金属轴向取代的酞菁化合物和萘酞菁化合物进行了纵向比较，发现周围取代的金属萘酞菁化合物具有较好的非线性光学性能，为提高材料的反饱和吸收性能提供了一种新的途径。

A magnetic spring was developed,which consists of two magnetic rings with different dimension,locating concentrically with same direction of magnetization.

研制了一种磁力弹簧，它由直径大小不同的两个磁环同轴同向排列，其中一环固定，另一环可轴向滑动，组成磁力弹簧。

Compared with dissymmetrical engines, the results show that the contrapositive cam engine can balance the axial force with larger torque output and lower loads on shafting bearings.

研究结果表明，虽然对置后发动机轴向长度有所增加，但主轴轴向力能完全平衡，主轴产生转矩大，轴承负荷小，可提高功率。

The simulation floating zone modelwith zero temperature gradient in the middle of the hot rod is proposed to simulate thehalf part of the full floating zone convection,since the temperature gradient in the middleof a full floating zone approaches zero.

根据加热方式的不同，可以将半浮区液桥分为通常半浮区液桥模型、模拟半浮区模型以及改型半浮区模型。通常半浮区液桥模型，液桥热端材料一般选择为金属材料，使得热端温度分布均匀。液桥产生热毛细对流时，在液桥热端内侧存在较大的轴向温度梯度。而在全浮区热毛细对流中，浮区中间的轴向温度梯度在对称条件下应该接近于零。

The dynamic equations were derived for the vehicle-bridge coupled system with an axial force of bridge based on D Alembert's principle and the assumed mode method. The numerical results were obtained by Newmark-β method. Dynamic responses of the system caused by axial forces of bridge and speed of vehicle were discussed respectively.

应用达朗贝尔原理和振型分解法，建立了在桥梁轴向力作用下车-桥系统的动力学方程，利用Newmark-β方法，对车桥耦合问题进行数值求解，比较分析了桥梁轴向力、车速等对系统动力学响应的影响。

Based on characteristic of chinese handwritten signature, some programs are developed to acquire the dynamic handwritten signature data from WACOM Tablet and to calculate velocities from acquired dynamic data. Based on statistics theory, instantaneous velocity and average X velocity and average Y velocity and time when the first maximal velocity arriving during on-line handwritten signa...

根据汉字手写签名的特点，编程从手写板获取签名的动态数据，编写了提取手写签名多种速度特征值的程序，在统计的基础上，对手写签名过程中的瞬时速度、X轴向平均速度和Y轴向平均速度、最大速度出现的位置、极大速度首次出现的位置等特征量的稳定性进行了实验研究，得出了一些有用的结论。

Because of the particularity of claw pole structure, the axial magnetic field produced by the stator winding is transformed into the diametric one along the circle of air gap.

当定子绕组通电时，电机中产生轴向磁通，爪极的作用就是将定子绕组产生的轴向磁场转化为沿气隙圆周径向排列的磁场，同时将 1对极转化为 P对极[1] 。

This paper analyses the distributive law of axial compression in concrete wall and its influnce on strength of reinforced concrete penstock with steel lining located on the downstream surface of a concrete dam by the finite element method and model tests with material similar to prototype.

通过几个电站的有限元计算和仿真材料模型试验成果，分析混凝土坝下游面钢衬钢筋混凝土管道的轴向应力分布规律及其对管壁应力的影响，可作为管壁三维强度分析的依据，并指出在轴向压力和内水压力作用时裂缝更早发生。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。