最近，由于产权变换和资产剥离，火车营运线路大大减少了。
In recent times, what services there were had been greatly reduced after several changes of ownership and much asset-stripping.
本文在频变参数基础上提出了一种计算电晕线路响应特性的新变换方法，并用其计算了线路的雷电波响应。
Based on the frequency parameters, a new transformation method to determine the response to lightning impulse wave on transmission line with corona is proposed in this paper.
该方法利用小波变换分析所采集的故障暂态信号，提取用于选线的暂态信息，并采用综合相位比较法确定故障线路。
In this method the transient fault signals are analyzed with wavelets transform to obtain the transient fault information, and the fault circuit is selected by the synthetic phase comparison method.
提出了利用二次模变换计算同杆双回输电线路潜供电流与恢复电压稳态值的方法。
A new method for calculating secondary arc current and recovery voltage on double-circuit transmission lines by twice-model transformation was proposed.
线路码；频谱变换；位定时提取。
提出了一种基于双端电压暂态信号小波变换的高压输电线路快速保护算法。
A new high speed protection criterion for high voltage transmission line based on the wavelet transform of transient voltage signals from the two ends of the line is presented.
JRT型热过载保护器临界电流检测仪采用多受检器件串联及电子变换检测线路，提高了保护器大规模生产的效率和检测的准确度。
A number of detected electric elements are series and an electronic detective circuits are adopted in the critical current detector for JRT thermal overload protector.
本发明所设计的波形变换方法及其装置，省去了中间直流环节，使线路得以大大简化，显著降低了成本，同时使电压、电流谐波得以减小，并可获得较高的功率因数。
The present invention has no intermediate DC link and thus simplified circuit, low cost, less harmonic component in the voltage anc current waveform and high power factor.
温压工艺已经成功地应用于汽车零件上，包括发动机传动转矩变换器涡轮毂、连杆、齿轮类零件和整体线圈与电子线路点火装置等。
Warm compaction technology have been successfully employed to automotive parts including turbine hub, connecting rod, gears, whole coil and electronic igniter, and so on.
针对水平扫描线直线路径变形的基础上，提出使用几何旋转变换来实现任意方向的变形。
Scan lines can only be processed in horizontal manner, with the use of geometric transformations; it can make deformation done in any direction.
为改善印刷电路板线路的电磁干扰性能，提出了一种半桥准谐振变换器印刷电路板寄生参数的提取及优化的方法；
The paper presents a method to obtain and optimize the parasite parameters of the PCB in HB QRC converter for better EMC performance.
为改善印刷电路板线路的电磁干扰性能，提出了一种半桥准谐振变换器印刷电路板寄生参数的提取及优化的方法；
The paper presents a method to obtain and optimize the parasite parameters of the PCB in HB QRC converter for better EMC performance.
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