纵向

The air conditioner forced draft fan ventilates the way to have longitudinal and the crosswise two kinds generally, the lateral ventilation the air current overflow sectional area is big, the wind speed is small, easy to create the big area the dead angle, but longitudinal ventilates the air current the overflow sectional area to be small, the wind speed is big, the dead angle area is very small.

冷风机通风方式一般有纵向和横向二种，横向通风的气流过流断面积大、风速小，容易造成较大面积的死角，而纵向通风气流的过流断面积小，风速大，死角面积很小。在使用条件许可的情况下，应该尽可能采用先进的纵向通风方式。

On the theroy and method of analysing the longitudinal inertia force of railway goods some fresh views are presented.

本文从分析作用于货物的纵向惯性力入手，对铁路货物运输的稳定性问题进行了理论探讨，导出了车载货物的纵向动力学方程及其有关推论，对铁路货运领域在货物纵向惯性力问题上的理论和方法提出了一些新的见解，建议统一查定我国铁路货车在各种运行和调车工况下的加速度值，做为日常确定货物稳定性的科学依据。

According to longitudinal vibration partial differential equation of rod, the longitudinal vibration displacement response of uniform infinite rods by the harmonic point forces was derived.

longitudinal vibration ； wave approach ；从杆纵向振动的偏微分方程出发，推导了无限长杆在简谐点力作用下的纵向振动位移响应，在此基础上，基于结构线性假设和波的叠加原理，得出了有限长梁纵向振动谐响应的波动表达式，列出了常用的边界条件。

The code considers both transverse and longitudinal movements in the accelerators using a used 4 order variable step Runge Kutta method to calculate the beam envelope of the transverse movement , the phase oscillation curve of the longitudinal movement, the energy growth, the energy distribution at the exit, and the longitudinal electric and magnetic field distributions.

L INE- ACC/ PC程序同时考虑了加速器中的横向运动与纵向运动，运用了四阶变步长 Runge- Kutta法计算了行波电子直线加速器束流横向运动包络线、纵向运动相振荡曲线、能量增长、出口能量分布和纵向电场、磁场分布。

The code considers both transverse and longitudinal movement s in the accelerators using a used 4 order variable step Runge Kutta method to calculate the beam envelope of the transverse movement, the phase oscillation curve of the longitudinal movement , the energy growth, the energy distribution at the exit, and the longitudinal electric and magnetic field distributions.

L INE- ACC/ PC程序同时考虑了加速器中的横向运动与纵向运动，运用了四阶变步长 Runge- Kutta法计算了行波电子直线加速器束流横向运动包络线、纵向运动相振荡曲线、能量增长、出口能量分布和纵向电场、磁场分布。

The code considers both transverse and longitudinal movements in the accelerators using a used 4 order variable step Runge Kutta method to calculate the beam envelope of the transverse movement, the phase oscillation curve of the longitudinal movement, the energy growth, the energy distribution at the exit, and the longitudinal electric and magnetic field distributions.

L INE- ACC/ PC程序同时考虑了加速器中的横向运动与纵向运动，运用了四阶变步长 Runge- Kutta法计算了行波电子直线加速器束流横向运动包络线、纵向运动相振荡曲线、能量增长、出口能量分布和纵向电场、磁场分布。由该程序对海关大型集装箱检测系统用加速器的 9Me V档进行调整计算，结果表明：该程序的设计结果与实际运行参数符合得很好。

Simulation results also show that saddle-shaped distributed AMF can more effectively inhibit constriction of vacuum arc.

对于小电流扩散态真空电弧，重点仿真分析不同电弧电流与不同纵向磁场对其关键特性的影响，部分仿真结果进行了实验验证；对离子处于超音速流动的收缩态真空电弧的仿真表明，真空电弧的磁收缩主要是由于霍尔效应引起的，离子温度和电子温度沿轴向先增大后减小，马鞍形分布的纵向磁场能够更有效地抑制真空电弧的收缩，而且阴极斑点分布对真空电弧特性也有着显著的影响；对离子处于亚音速流动状态的大电流真空电弧的仿真表明，部分等离子体不能到达阳极而损失，马鞍形分布的纵向磁场能够更有效地抑制电弧等离子体的损失，同时能使阳极电流密度和能流密度的分布更加均匀。

A tread portion (4) of a tire includes a first vertical groove (10), a second vertical groove (12), a subvertical groove (14), a first lateral groove (16), a second lateral groove (18) and a third lateral groove (20) on a surface thereof.

轮胎的胎面部在其表面上包括第一纵向沟槽、第二纵向沟槽、副纵向沟槽、第一横向沟槽、第二横向沟槽和第三横向沟槽。

According to the freight vehicle longitudinal stresscondition loads will be divided into switchyard conditions,brake condition,ease conditin and so on.Then based on survey statistics and samples of various spectral condition, the preparation of the actual operation longitudinal load spectrum will be established.

3根据货车纵向受力状况，将纵向载荷分成溜放、制动、缓解等工况，并依据调查统计及试验样本谱合成各种工况，编制实际运行的纵向载荷谱。

D1.1 of the AISI Specification limits the maximum longitudinal spacing of connections to ... where smax = maximum permissible longitudinal spacing of connectors L= unbraced length of compression member rI = radius of gyration of I-section about the axis perpendicular to the direction in which buckling would occur for the given conditions of end support and intermediate bracing rcy = radius of gyration of one C-section about its centroidal axis parallel to the web.....

因此，AISI规范第D1.1节限定连接的最大纵向间隙为：，式中 smax =连接体允许的最大纵向间隙 L=抗压构件的自由长度 rI =工字钢对垂直于给定端承和中间肋条件下可能产生纵向弯曲方向的轴的回转半径 rcy =一段U型钢对其平行于筋的质心轴的回转半径。。。。。。。

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。