查询词典 speed

The impact of parallel operation of wind turbines on power flow is analyzed, in which the squirrel cage induction motors are used as the constant speed wind turbine and the double fed induction motors are used as variable speed wind turbine.

分析了以鼠笼感应电机作为发电机的定速风电机组和以双馈感应电机作为发电机的变速风电机组并网运行对系统潮流的影响，并对不同控制模式下使用双馈感应电机的变速风电机组的电压和无功控制特性进行了比较。

YTSZ-series VVVF variable speed three-phase induction motors metallurgical and crane use,based upon YTSP-series VVVF variable speed three-phase induction motors, are newly developed series of products by our company in accordance with the operating feature of metallurgical and crane three-phase induction motors.

YTSZ系列冶金及起重用为频调速三相异步电动机，是我公司在YTSZ系列变频调速三相异步电动机的基础上，根据冶金及起重用三相异步电动机使用特点而开发的系列产品。

Current tuning is introduced, and the speed open-loop transfer function is established based on current closed-loop. A mathematical inequation about the speed open-loop transfer function is deduced, then the measured amplitude-frequency data is introduced in the inequation, thus the mathematic expressions about moment of inertia and mechanism time constant are obtained.

引入了电流校正环节，建立了基于电流闭环的速度开环传递函数，推导了关于该速度开环传递函数的数学不等式，再将实际测得的幅频特性代入此不等式中，得到了关于转动惯量和机械时间常数的数学表达式。

Of Einstein's special theory of relativity, a good solution to the speed of light for all inertial reference frame of the observer are constant speed c.

爱因斯坦的狭义相对论，很好地解决了光速对所有惯性参照系的观察者均为恒速c的问题。

The algorithm optimizes the initial profile position to address effectively the impact of the initial location of the evolution curve speed,by through point by point to the generation of energy function for the minimal value,to reduce the amount of computation,improve the speed of image segmentation.

该算法优化了初始轮廓位置，有效地解决了初始位置影响曲线演化速度问题，并通过逐点代入法来极小化能量函数，减少了计算量，提高了图像分割的速度。

The simulating results show that this new kind of gene gun not only meet the speed requirement of practical gene gun application,but also has an easy speed controlling characteristics by means of the initial charge voltage of the driving capacitor in the driving system.

仿真结果表明，新型基因枪的微弹发射速度不仅可以通过调节其驱动电路的初始充电电压的幅值来控制，而且其微弹发射速度能够满足基因枪的实际使用速度要求。

Convenient to the new Lenovo input function at the keyboard input can be used to speed up the input speed.

方便的键盘输入到新的联想输入功能，可用于加快输入速度。

The first type of variable speed system is designed to achieve the disturbance rejection, insensitiveness to parameter variations and the servo tracing to input speed.

第一类系统的设计是为了获得对电机参数偏移及外界扰动的强鲁棒性以及对不同转速输入形式下的快速跟踪能力。

Based on the theory of dynamics and motion, the model for simulating the instantaneous angular speed in diesel engine is presented. The calculating software is developed with LabVIEW, the instantaneous angular speed is calculated and analyzed.

根据柴油机的动力学和运动学，建立了柴油机瞬时转速的计算模型，在LabVIEW软件开发平台上开发了仿真计算软件，进行了柴油机瞬时转速的仿真计算与分析。

In the process, the instantaneous speed of the drive system is higher than the instantaneous synchronous speed because of the inertia of the drive system.

为 了使拖动系统停止，逐渐减小频率；此时，由于惯性的缘故拖动系统的瞬时速度比同步瞬时速度要高。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。