Fully automatic frequency variation speed regulating NC die cutting production line control system;
全自动变频调速、数控冲切生产线控制系统；
Therefore, the frequency variation due to a factor other than the adsorption of the object is cancelled.
因此，由于探测对象物的吸附以外的原因引起的频率变化被抵消。
The improved algorithm can track frequency variation of the time-varying signal with no extra calculation burden.
对算法进行了改进，在不增加计算量的情况下，实现了对频率变化的跟踪。
Digital filtering technique based on least square method multichannel sampling technique and frequency variation sampling technique were used experimentally.
实验应用了基于最小二乘法的数字滤波技术、多通道采样技术、变频率采样技术。
Digital filtering technique based on least square method, multichannel sampling technique and frequency variation sampling technique were used experimentally.
实验应用了基于最小二乘法的数字滤波技术、多通道采样技术、变频率采样技术。
PID control is used on the speed control by frequency variation and the temperature pressure control of the Chain gate machine-rotary kiln of the system.
本系统的回转窑直流调速、变频调速以及温度压力控制都采用了数字PID控制。
Then the characteristics of frequency variation during the fatigue crack propagation process are simulated by three - dimensional dynamic finite element analysis.
并利用三维动态有限元模拟了点焊接头疲劳裂纹扩展过程中频率变化特性。
The paper studied the issue of low frequency in shallow parts of cross-hole seismic reflection sections using imaging principle and deduced frequency variation factor.
本文利用成像原理对井间地震反射剖面的浅部频率变低问题进行了研究，导出了频率变化因子。
In the solution of high frequency variation of ERP from VLBI observations, the direct solution mode with the consideration of the pole offsets is accordingly recommended.
为此，在基于VLBI资料解算erp高频变化时，建议采用直接求解模式，并考虑岁差章动模型偏差的影响。
Based on T type filter, the new ballast can achieve a wide dimming range with a very narrow frequency variation range, and it can operate with low lamp current crest factor.
基于T型滤波器的调光方法，能在很窄的工作频率范围内实现深度调光，同时具有灯电流波峰因数低的优点。
The conclusion in this paper has been proved by the field data measured from the oil transferring system with frequency variation speed-regulation in Daqing No. 2 Oil Plant.
并利用大庆采油二厂变频调速输油系统的实测现场数据，证实了本文的结论。
When vehicles passing ring coil detector, the interaction of vehicle body's substance and ring coil changes resonant frequency of the ring coil and forms a curve of frequency variation.
车辆通过环形线圈检测器时，车体物质与环形线圈相互作用改变了线圈的谐振频率，从而形成频率变化曲线。
The simulated extraction of weak frequency variation signal is carried out with the expressed Resonant frequency locking property when system transits from chaotic to great periodic motion.
利用系统从混沌状态到大周期转变时所表现出的共振锁频性质，进行了微弱频率变化信号的仿真提取。
The simulated extraction of weak frequency variation signal is carried out with the expressed Resonant frequency2locking property when sys2tem transits from chaotic to great periodic motion.
利用系统从混沌状态到大周期转变时所表现出的共振锁频性质，进行了微弱频率变化信号的仿真提取。
The appropriative test menu for "power frequency variation" is normally built in domestic relay protection test instruments, but it should be calculated and set beforehand for imported instruments.
国产继电保护试验仪一般都有针对工频变化量的专用测试菜单，而进口仪器则需预先计算和设置。
For Shanghai power grid, which has large short circuit capacity and short electrical distance, a method using imported instrument to test power frequency variation distance protection is presented.
结合上海电网具有短路容量大、电气距离短的特点，提出了使用进口仪器测试工频变化量距离保护的具体方法。
For Shanghai power grid, which has large short circuit capacity and short electrical distance, a method using imported instrument to test power frequency variation distance protection is presented.
结合上海电网具有短路容量大、电气距离短的特点，提出了使用进口仪器测试工频变化量距离保护的具体方法。
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