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- A vibration experiment to measure the critical speed of rotation and the beat 测量临界转速和拍的振动实验
- critical speed of rotation 临界转速
- Speed of rotation is proportional to the frequency of the A.C. power. 旋转速度与A.;C能量频率成比例。
- The critical speed of one turbopump rotor on elastic support was computed by FEMQZ. 计算分析了某涡轮泵转子在弹性支承下的临界转速。
- The influences of impeller types, baffle configurations and gas sparger on critical speed of floating particle in an agitated vessel were investigated. 探讨了搅拌桨型、挡板和气体分布器等结构因素及气体流量、颗粒质量分数等工艺因素对下沉颗粒三相体系临界搅拌转速的影响。
- The differential quadrature method was employed to analyze the natural frequencies and critical speed of the plate under in-plane loading. 分析轴向运动速度、板材料刚度及长宽比对板横向振动固有频率及临界速度的影响。
- Linkages scissored from the twirling pendulums slide up a sleeve on the pole, levering a valve which controls the speed of rotation by adjusting the steam. 与旋转的摆成剪状交叉的联动装置把柱子上的滑动套筒顶起，扳动一个阀门，一个通过对蒸汽进行调整从而控制旋转速度的阀门。
- Excessive speed of rotation of the impeller is liable to cause the pressure on the suction side to fall so low that the liquid will vaporize, thus causing damage to the impeller. 随后这种动能便转换成静压能，于是又加大了泵的吸入管与排出管间本来就很大的压差。
- Investigation shows that the wheel(flange)/rail lubricating can effectively increase critical speed of three-piece bogie and prevent vehicle derailment on straight track. 研究表明,轮(缘)轨润滑能有效提高三大件式转向架的临界速度,从而防止相应车辆在直线段的脱轨。
- The critical speed of different-speed mixer shafts is obtained by using the finite method, which is compared with calculating results of theoretical formulae. 摘要采用有限元法计算差速搅拌捏合机搅拌轴的临界转速，并与理论公式的计算结果作了比较。
- This paper is directed against the reality problem that it is very difficult to measure the critical speed of the shaft system in a large scale hydrogenerator unit in operating. 针对大型水轮发电机组轴系临界转速难以实际测定的现实问题，从理论分析的角度出发，抓住水力机组轴系结构的基本特点，提出采用较为简单的模拟结构，试验研究水力机组轴系固有频率及其振型特征。
- The coefficient is expressed as a percentage and is dependent on rotation uniformity, speed of rotation (for rotary type sprinklers), geometric layout pattern, nozzle pressure, and spacing distance. 此系数是一个百分数，它取决于转动的均匀性、转动速率(对旋转型喷灌器而言)、立体结构、喷嘴压强和间距。
- An analysis related to various kinds of soil cutting by earth auger,this paper puts forward that running speed of frill should be faster than critical speed so as to increase the efficiency of drill. 通过分析长螺旋钻机在切削各类土质时，钻具的角速度与土块运动机理关系，提出确定钻具临界的方法，而工程施工中钻杆的实际转速应大于临界转速，以提高钻机的工作效率。
- At the end of the thesis, a brief introduction of the electrical control system of HVD and a method of using PID control to carry out speed of rotation of closed loop control are brought forward. 对于HVD的电气控制系统进行了简要介绍,提出了运用PID控制进行转速闭环控制的方法。
- The speed of this aircraft is very high. 这架飞机的速度非常快。
- The method is testing the particle sheer stress, velocity gradient at different speed of rotation by adopting different particle density and different particle diameter suspensions. 试验结果与拜格诺试验的结果完全一致，将其结果延伸，所采用的试料更加符合生产实际。
- The hurricane has a speed of 73 miles per hour. 飓风每小时73英里。
- The speed of a runaway horse count for nothing. 脱缰之马的速度毫无价值。
- The planetary mill can be used for the ultrafine comminution, when the mechanism size of the mill is determined, the escaping position of the critical speed of the grinding ball will not be changed. 行星式球磨机可以用于超细磨矿。磨机的结构尺寸一旦确定,磨球脱离筒壁的临界转速脱离点位置则不会改变。
- The critical speeds of twisting vibration of multiple rotor-bearing system connected by coupling are often low.Some critical speeds are close to the working speeds. 摘要由联轴器联结的多跨转子-轴承系统，整个轴系的扭转振动临界转速较低，为避免在工作转速范围内，常需要计算和进行结构修改。
