轴的

The aim of the subject is to design and check the strength of the gears of crown gear coupling from the Beijing subway and to analyse the teeth by means of 3D FE elastic contact method. The result can numerically and theoretical support the design and manufacture of crown gear coupling.

本课题研究的目的是通过对北京地铁联轴器齿轮副进行强度设计和校核，并且对其进行三维弹性接触有限元分析，得出鼓形齿联轴器齿轮副的弹性接触状况，为鼓形齿联轴器的设计及制造提供数据和理论支持。

Experimental study of stress-strain relationship of normally consolidated intact soft clay in Hangzhou under undrained fixed shear of principal stress direction and monotonic rotation of principal stress axis had been done, which was used to reflect the soil properties response to the monotonic rotation of principal stress axis under real engineering conditions.

为反映真实工程条件下主应力轴旋转应力路径引起土体性状的变化，对杭州地区正常固结原状软黏土在固结不排水的主应力轴定向剪切和主应力轴单调旋转条件下的应力-应变关系进行试验研究。

Aimed at the minimum maximum principal stress,based on three dimensional finite element analysis,with the help of FEM software,an optimization method is used to design the main parameters of the joint cross of universal coupling.

利用ANSYS软件对轧机主传动系统的万向联轴器十字轴进行三维有限元分析，在此基础上，以十字轴所承受的最大主应力最小作为追求目标，在ANSYS软件中对其主要参数进行了优化，得出了较为理想的结果。

If there is excessive wear, recondition the shaft and use an appropriately-sized bearing/bushing or replace the shaft.

轴与轴承表面相连接的部分的磨损应该极小，如果磨损过度，则修理轴，并用相近尺寸的轴承/炭刷，或者更换轴。

The rolling friction coefficient between roller and track is an important parameter in building monolithic moving engineering.

滚轴滚动摩擦系数是建筑物整体迁移工程水平动力计算的重要参数，在钢管混凝土滚轴与钢板的滚动摩擦试验中，测得滚动摩擦系数为0.002～0.004，它随滚轴受到的竖向压力增大而减小。

To improve the investment environment, SED designs a city central axis landscape belt which will become the green hinge of Chengyang District, combining the functions of culture, business, living and tourism. Sea culture theme--modern development--natural ecology will be the main melody of the central landscape axis. The civic square, commercial area and residential communities are designed to imply the significancy of "openness, creativity, and harmony" respectively.

为更加完善的投资环境， SED新西林景观国际设计了城阳区城市中轴景观带，在设计规划中，未来的中轴景观带将成为城阳区文化、商业、旅游、居住的绿色枢纽；海文化主题--现代发展--自然生态，成为中轴景观主旋律。

The selectable equipments are rotor mast aiming system, two pods with 2 TOW missiles for each, Blackhole infrared suppresser, two pods with 2 Stinger missiles or other types of air-to-air missiles for each, FLIR system for pilot, AN/APR-39(V-1) radar warning system, fuel tank on hardpoints, advanced avionics and mission equipments.

旋翼轴瞄准具可将视频信号输给飞行员的电视显示器。旋翼轴瞄准具备激光测距仪。为了不被敌人发现，"防御者"Ⅱ直升机可借助旋翼轴瞄准具在树木或地形后面进行隐蔽悬停，而且还能观察战场远处的情况。只要稍作改装，就可安装为OH-6A研制的标准轻型航空电子设备。

For 5-Axis Cut Line Surface milling and Swarf milling, the alues are: USE_SURF_NORMS—The surface normal is used in determining the tool axis orientation, that is, any user-specified axis definition proides a localized lead and tilt angle that is applied to the normal of the surface being machined.

对于"5 轴切削线曲面"铣削和"刀侧铣削"，值为：使用曲面法向-曲面法向用于确定刀具轴方向，即，任何用户指定的轴定义都提供应用到加工曲面的法向的定位导引角和倾角。

This paper extends the analysis for axial-system torsional oscillation into the nonlinear domain,and the research for Hopf ramification phenomena in axial-system torsional oscillation has been made using the time-domain simulating results,it verified the analysis results of similar nonlinear differential equation describing the axial-system torsional oscillations.

文中把发电机轴系扭振的分析扩展到非线性领域，并对轴系扭振中的Hopf分歧现象进行了研究，利用时域仿真结果对从描述轴系扭振的近似非线性微分方程分析所得结果进行了验证。

So this part will propose a new method based on the EMTDC to analyze the torsional oscillation problem. Since the EMTDC only has the 7 masses shaft model, use the user Module to develop a detailed shaft model.

由于EMTDC现有的轴系多质量块模型最多只能考虑7个质量块，所以基于模态转换与模态降阶的思想利用EMTDC自定义模块重新开发轴系的多质量块模型，使得能对轴系各截面进行考核分析。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。