回转平台

Taking AutoCAD R14 as the operating platform, a machining simulation system for 5 axle coordinated CNC tool grinder is developed by using ActiveX Automation technology.

以AutoCADR14为操作平台，利用ActiveXAutomation技术开发了五轴联动数控工具磨床的加工模拟软件系统，该系统能模拟使用各种类型的砂轮磨削各类回转面刀具的加工过

The controller controls the velocity of swing motor by the means of meter-in to track the output velocity of rotary stage of the optimal regulator, so that the load sway can be controlled during swing operation.

最后，本文设计了回转液压回路模糊控制器，以换向阀节流调速的方式对液压马达转速进行模糊控制，使起重机回转平台跟踪最优调节器输出的转速，实现对吊重摆振的控制。

The realistic simulations of the azimuth tugboats typical movement including turning ability, swaying ability were made. Among the simulations, the effects of wind and current were taken into account for the sake of reality.

最后，为验证本文所提出的模型的正确性与可行性，本文利用Visual Basic语言开发了全回转式拖轮的操纵运动仿真平台，并对全回转式拖轮的两种典型运动进行了仿真。

With multiple functions of digging, grabbing, drilling, bull-dozing, ditch-cleaning and rock-breaking, this excavator can be widely used in various construction projects such as water supply, power supply, gas supply, telecommunication network, farmland and garden works etc.

该机采用伺服先导操纵，操作舒适；平台可360o回转，具有挖、抓、清沟和破碎等功能，可广泛用于公路、建筑、市政、供水、供气、供电、农田建设等土方工程。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。