Then based on the best slip formula of three-phase asynchronous motor total loss smallest, permanent best slip U/f coordination control strategy was proposed.
5Hz的输出带电机平稳运行;然后通过推导三相异步电动机总损耗最小的最佳转差率公式,提出恒最佳转差率U/f协调控制策略,在电机轻载时它通过U/f协调控制提高了异步电动机效率和功率因数,实现了全变频范围力能指标最优的控制目标;最后在设计制作六脉波的晶闸管换流电路、专用换流变压器和控制保护电路、开发控制保护软件程序的基础上搭建了六脉波双变量交交变频调速系统实验平台,在不同分频下验证理论研究成果和控制效果,并与仿真实验对比分析。
Throat frequency distributions of a segment of rock sample were measured by using rate-controlled mercury penetration.
截取一段实际储层岩样 ,利用恒速压汞实验技术测定其孔喉频数分布 ,并拟合成连续分布函数 ,该函数符合伽马函数分布。
It has speed detecting motor, the rotating speed is constant, not affected by material viscosity and the voltage change of power supply.
带有测速发电机，转速恒定，不受物料粘度变化和电压影响。
doing a steady 4000 revs
达到4000转的恒定转速.
a constant speed, value, etc
恒定速度、 恒值等
doing a steady 4000 revs(per minute)
达到（每分钟）4000 转的恒定转速.
Rate Control Strategy in CBR Video Transcoding
恒定速率视频编码转换码率控制策略
The whole drum rotates at a steady speed of about sixty revolutions per second.
整个磁鼓大约以每秒60转的恒定转速旋转。
It enables the rotor with constant speed for maintaining steady output voltage.
它使转子能以恒定速度转动，保持输出电压稳定。
epicyclic reduction gear solar type
恒星式周转减速齿轮
At present the majority ferment tins used in pharma-ceutimcal industry have trditional constant rotationl speed to agitate.
目前应用在制药工业上的发酵罐,多数采用传统的恒定转速搅拌。
conservation and conversion of energy
能量守恒和转换定律
Rotating Speed Control of Variable Speed Constant Frequency Wind Turbines Using Double-Fed Induction Generator;
变速恒频双馈风力发电系统转速控制
In a constant electric field, a charged particle experiences constant acceleration.
在恒定电场中，带电粒子得到恒定的加速度。
In the process of hardware-in-the-loop simulation, the rotation error is produced because the rotational speed of rotative missile can not reach the contant value.
在半实物仿真的过程中,由于旋转导弹转速无法达到恒定的要求,引起自旋误差。
A synchronous motor drives the measuring bob at a constant rotational speed.
同步马达驱动测锤以恒速旋转。
DTC control of doubly-fed variable speed constant frequency wind turbine
双馈变速恒频风电机组直接转矩控制
Study of Robust Rotating Speed Control Methold of Variable Speed Constant Frequency Wind Turbine System
变速恒频风力发电系统转速鲁棒控制方法研究
Pull out half adhensive tap from samples with60 degree and invariable speed.
以约60度角度恒定速度，将胶纸撕起.
The constancy of the speed of light seems, at first thought, unremarkable.
光速恒定，初看起来好像很平常。