往复

This paper features the work of rotating platform,to be adopted high-speed switching valve control system to control the rotating platform clockwise and counterclockwise rotation of the reciprocating movement.

本文针对旋转平台的工作特点，拟采用高速开关阀控系统来控制旋转平台的顺时针和逆时针的往复旋转运动。

Electrical wiring spile on the ring, passing into the collector ring of power to pass through the internal outlet to the device.

确认上述各款都以做到，方可送电试车，空载运转往复20个圆周后无异常现象，即正式工作运行。

One slightly concave cylindrical lens combination is used to change one laser beam into small sector in small angle, and one reflector projects the laser beam to prism driven by a motor to rotate in high speed to produce one reciprocating and scanning small sector plane.

采用微凹柱面透镜组将激光光源发射的一束激光拉成具有微小夹角的小扇面，利用反射镜将此激光束透射到由电机驱动的高速旋转多面棱体上，使激光束产生一个小扇形往复激光扫描光平面。

Operation regime, configurational peculiarities, and the materials used of the piston are investigated analytically.

指出了目前矿场往复泵活塞寿命太短的主要原因，并对活塞的使用工况、结构特点及材料性能进行了分析研究。

An inside conical surface at the lower end of the joint is designed to ensure the shaft swing freely within an angle range of 10°, thereby the axial bending stress caused by the deflection of the borehole can be eliminated effectively.

这种装置采用类似球形关节的旋转机构，消除了抽油杆柱上下往复运动产生的倒扣扭矩；在短节下端设计有10°的内圆锥表面，使转轴能够在10°范围内自由转动，从而有效地消除了由于井身弯曲而产生的轴向弯曲应力。

However,people don't agree in understanding of the word "contemplativeness" and some potential meanings of the term fail to be explored.

沉郁顿挫的风格是指杜诗运思深刻，感情浓烈，声情悲壮，而又忠厚缠绵，含蓄蕴藉，回环往复的特点。

In fact,the style of contemplativeness refers just to such characteristics of Dus poetry as deep thought,strong emotion,tragic sense,tender feelings,implicit comfort and nostalgia.

沉郁顿挫的风格是指杜诗运思深刻，感情浓烈，声情悲壮，而又忠厚缠绵，含蓄蕴藉，回环往复的特点。

ABSTRACTIn this paper, the characteristics of velocity fields and concentration fields of jets at different velocity ratios in counterflow and coflow ambient are studied in detail. The preliminary results of velocity fields of jet in reciprocating ambient are also acquired.

本文对反向流动、同向流动环境中不同流速比下射流的流速场特性和浓度场特性进行了研究，并对往复流动环境中射流的流速场特性进行了初步探讨。

The fault feature of reciprocating machinery is extracted by CWT in this thesis.

特征提取是往复机械诊断信息提取的核心。

The most important thing in using CWT is to select proper wavelet base.

本文运用连续小波变换来提取往复机械故障信号的特征信息。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了