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- STUDY AND DESIGN OF WIND VELOCITY CONTROL AND DATA ACQUISITION PROCESSING SYSTEM FOR WIND- TUNNEL 风洞风速控制与数据采集处理系统的研究与开发
- wind velocity control 风速控制
- Control Air. Wind velocity increased or decreased by up to 10 miles per hour +5 miles per hour/level. 操控气流:风速增加或减少10英里每小时加上每显能者等级+5英里每小时。
- Wind tunnel experiments were conducted to study the impacts of(Polyacrylamide)(PAM) on the threshold wind velocity in wind erosion control,and wind erosion prevention. 该研究通过室内风洞模拟试验,研究了PAM对于提高松散扰动土起动风速、防止风蚀的效果。
- "Instruments to record wind velocity and direction are inoperative, and with the radio broken there is no way for the control tower to communicate with aircraft," he said. 他说:“记录风速和风向的仪器不起作用,因为无线电坏了,指挥塔也无法与飞机联系。”
- The propeller can follow the wind velocity closely during hingspeed gusts. 螺旋桨在有高速狂风时能紧紧地追随风速。
- The propeller can follow the wind velocity closely during high-speed gusts. 螺旋桨在有高速狂风时能紧紧地追随风速。
- The up-convexity of the curves increases as wind velocity increases. 跃移边界层外风速分布可较好地用对数函数来描述。
- The reaction flywheel control system was designed by using PWM technology under the velocity control mode, and the hardware circuit was also set up. 设计了由PWM脉宽调制技术构建的工作在速率控制模式下的反作用飞轮控制系统,并对其硬件电路进行了具体实现。
- This paper introduces steel strip velocity control method at Pushing And Drawing Pickled Steel Strip WISCO. 本文介绍了推拉酸洗带钢生产厂带钢线速度控制方法。
- This method is successfully applied in the closed-loop velocity control system of the mobilemachinery shop for well logging. 在石油测井工程车的闭环速度控制系统中获得成功应用。
- Wind direction, wind velocity, air temperature and air pressure have a very great effect on the propagation of pressure waves. 风向、风速、气温和气压对压力波的传播有十分巨大的影响。
- Computer simulation shows the neuro-PID control system is more effective than traditional PID control in tension and velocity control. 仿真结果表明,该控制器比传统PID控制器有更好的性能。
- The mechanical ventilation psychrometer under the stable wind velocity can get the relative high accuracy standard. 在比较稳定的风速下,利用干湿球法测试计算湿度,能够得到较高的精度。
- The function of the design is tested on EDA experiment platform, the result indicated that it can realize the stepper motor velocity control. 在EDA实验平台对设计进行了功能验证,实验结果表明,该方法可实现步进电机可变速度的控制。
- It is the newest developing lidar tech nology that is based on lidar to measure the wind velocity of the atmosphere. 用激光雷达在太空中对地球洁净大气探测,是激光雷达技术的最新发展。
- For capturing the unsteady shocklets are developed upwind compact scheme with group velocity control(GVC) and eighth order accurate GVC8 scheme. 构造了湍流直接数值模拟的高精度高分辨率计算方法。
- To criticize it for such failure is roughly comparable to criticizing a thermometer for not measuring wind velocity. 译文:批评智力测试不反映上述情况,犹如批评温度计不能够测风速一样。
- The state of the atmosphere at a given time and place,with respect to variables such as temperature,moisture,wind velocity,and barometric pressure. 天气给定时间和地点的大气状况,牵涉到变量如温度、湿度、风速和气压。
- States the significance of face velocity of VAV fume hood in modern laboratory, and states the principleand methods of face velocity control of VAV fume hood in detail. 论述了现代实验室变风量排风柜罩面风速控制的意义,详细阐述了排风柜罩面风速控制的原理和方法。