您要查找的是不是：
- harmonic wave of electric grid 电网谐渡
- harmonic wave of electric network 电网谐波
- Harmonic Wave of Electric Network in Coal Preparation Plant and Its Harm to Electric Motor 选煤厂电网谐波及其对电机的危害
- The performance of the electric vehicle is improved greatly in which the harmonic wave of output voltage, power loss and torque pulsation of the system are decreased by controlling the switch angles. 它运用规则采样法产生正弦脉宽调制波，通过开关角的控制抑制逆变器输出电压中的谐波分量，降低了电动机的损耗和转矩脉动，使电动车的运行性能得到了较大改善。
- The harmonic wave of current, when single phase grounded fault happened, can’t be eliminated by mounting Petersen-coil.The damage of arc-grounding overvoltage appeared. 而在单相接地的残余电流中含有较大的高次谐波，是加装消弧线圈也无法消除的，这使得弧光接地过电压的危害凸显出来。
- The fundamental harmonic wave of resistive component is acquired and the errors caused by unsynchronized sampling and interference in the field are eliminated effectively. 该算法有效地消除了由于信号频率抖动造成的非整周期采样以及测试现场高频干扰在测量过程中造成的误差。
- Then the feature and restraint of the harmonic waves of HVDC is also studied. 同时也对HVDC系统交直流侧谐波特征及抑制问题进行了研究。
- The varieties of hamonic wave of electrochemical rectifying units,the harness of harmonic wave,the kinds of filter and its characteristics,and the selection filter project were introduced. 介绍了电化学工业整流装置产生谐波的种类,谐波的治理方法,滤波器的种类及其特点,滤波器方案的选择。
- Industry is a heavy user of electric power. 工业需耗费大量的电力。
- A lot of electric lamps illumined the stage. 舞台由许多电灯照亮。
- Topographic relief is treated approximately as a wave consisted of harmonic waves of different cycles in this paper, and the effect of topographic relief on velocity analysis is discussed. 从地形起伏周期和地震排列长度关系的角度分析了地形起伏对速度分析结果的影响。
- Measurement and analysis on harmonic wave interference of electric equipment 电气设备谐波干扰的测量与分析
- Interruptions were swept aside with a wave of the hand. 手一挥就把别人的插话甩到一边去了。
- The waves of electric current pass along the line and finally reach the receiver of the telephone held by the person you are speaking to . 电流波沿着线路传输，最后到达你正同他通话的那个人所用的听筒。
- Analysis and Countermeasures of Electric Grid Ferromagnetic Resonance 电网铁磁谐振分析及对策
- Panic on the stock market set off a wave of selling. 股票市场上人心惶惶，掀起抛售浪潮。
- The waves of electric current pass along the line and finally reach the receiver of the telephone held by the person you are speaking to. 电流波沿着线路传输，最后到达你正同他通话的那个人所用的听筒。
- Suppression on the Harmonic Wave of Copper Electrolytic Rectifier 铜电解整流器谐波的抑制
- There has been a wave of theft from newsagent. 最近发生的一股从报刊经销人那里进行偷窃的浪潮。
- The weather has also ravaged the electricity grid. 恶劣天气还导致部分地区的电网瘫痪。
