1)permittivity[英][,p?:mi'tiv?ti][美][,p?m?'t?v?t?]电容率
1.The effects about potential distribution by time-harmonic character and permittivity a.最后讨论了时谐性和电容率对电位分布的影响。
2.The problem can be solved if we pay more atten- tion to the concept of permittivity and redesign the instruction of electromagnetism.从实际教学中发现,学生对电容率的物理意义的理解比较模糊,影响了静电场尤其是电介质部分的学习质量。
英文短句/例句
1.complex dielectric permittivity复电容率, 复介电常数
2.A Study of a New Method of Exploration Based on Reservoir Capacitivity基于电容率法的矿藏勘探新方法研究
3.change rate of capacitance with voltage电容量随电压变化率
4.power factor capacitor提高功率因子电容器
5.frequency tolerance of radio transmitter无线电发射机频率容限
6.power-factor correction capacitor功率因素矫正电容器
7.generating station capacity发电站容量或额定功率
8.The sources of reactive power (vars) are machine vars, capacitor and reactor vats.无功功率来自电机、电容器和电抗器。
9.THE CAPACITANCE COUPLED RESISTIVITY(CCR) METHOD AND ITS APPLICATION TO THE DETECTION OF SUBSURFACE HIDDEN DANGERS IN ROADS OR RAILWAYS应用电容耦合电阻率法检测道路隐患
10.Shunt capacitor grouping and Reactance Rate selection并联补偿电容器分组方式、电抗率选择
11.Mesoporous Carbon for High Power Supercapacitors高功率超级电容器用介孔炭电极材料
12.the charging and discharging current of capacitor is obtained by the product of voltage rise rate (dv/dt) and capacitance电容器充放电电流取决于电容量和电压上升速率的乘积
13.The Optimal Design of Reactance Rate of Parallel Capacitor in Power Grid;电网并联电容器装置电抗率的优化设计
14.synchronous capacitor[for power factor improvement, of an output exceeding 37.5w]同步电容器［用于提高功率因数,功率超过37.5w］
15.EMC design of high-power TEA CO_2 laser system大功率TEA CO_2激光系统的电磁兼容设计
16.High capacity rechargeable Libatteries with large capacity. long service life. low self-discharge rate and is economic and environmentally protective.高容量可充电锂电池，容量大、命长、放电率低，经济环保。
17.A new interace circuit for converting capacitance to frequency to period was designed.设计了一种新型的电容-频率-周期转换接口电路。
18.a capacitor that provides low impedance over certain (high) frequencies.通过一定的高频率提供低电阻的电容器。
相关短句/例句
dielectric constant电容率
1.Also simulations were made which showed that target length of cutting electric-power line and target dielectric constant were two corresponding target parameters to the capacitance change.仿真结果表明目标切割电力线长度和目标相对电容率是影响极间电容变化的两个重要目标参数,目标切割电力线越长,极间电容变化越大;目标相对电容率对极间电容变化的影响很小,与Marconi公司实测的电容探测器炸高散布小的结论一致。
3)capacitance-frequency电容-频率
1.According to standard Schottky theory and the measurements of capacitance-frequency and capacitance-voltage,we can conclud.根据标准肖特基理论以及实验所得电容-频率(C-f)和电容-电压(C-V)的测试结果,得到该有机肖特基势垒高度在0·2~0·3eV范围内。
4)permittimeter电容率计
5)complex dielectric constant复电容率
6)Permittivity[英][,p?:mi'tiv?ti][美][,p?m?'t?v?t?]电容率分布
延伸阅读
电容率电容率permittivity表征电介质极化性质的宏观物理量。又称介电常量。定义为电位移D和电场强度E之比，D＝εΕ，ε的单位为法拉／米(F／m)。电介质的电容率ε与真空电容率ε0之比称为该电介质的相对电容率εr，εr＝ε／ε0是无量纲的纯数，εr与电极化率χe的关系为εr＝1＋χe。线性各向同性电介质的电容率是标量，比较简单；非线性电介质（如铁电体）的电容率表示式是很复杂的；各向异性电介质（如某些晶体）的电容率则要用张量表示（见电极化强度）。电容率除取决于电介质本身的性质外，还与温度及电磁场变化的频率有关。相对电容率εr的数值等于同一电容器中充满均匀电介质时的电容C与真空时的电容C0之比，即εr＝C／C0。电容率的名称即来源于此。用较大εr的电介质充填电容器，可以减小电容器的体积和重量（见电容器）。
