查询词典 impedance

Based on the theory of vortex dynamics and fluidic impedance, the impacts of pressure-sampling position and joining pipe's frequency response on measured performances of the method were investigated.

应用旋涡动力学和流体阻抗法，分析了取压位置和引压管频率特性因素对该方法测量性能的影响。

The voltage standing wave ratio is a measure of how well a load is impedance-matched to a source.

文中给出了反射系数、阻抗和导纳的作图范例，并用作图法设计了一个频率为60MHz的匹配网络。

For a constant impedance load or a constant current load, if regulating the secondary voltage by making the changer ratio higher, the primary voltage will get much lower while the load power is restoring, and the power will then lose balance. For a constant power load or a motor load, since the change of OLTC has no or little influence on the load power, the voltage of primary side almost has no change whether the tap operates or not. The influence on the voltage stability with respect to the dynamic restoring load which is sensitive to voltage is also discussed.

对于恒阻抗和恒电流型负荷，在变比上调恢复副边电压的情况下，负荷功率恢复，又使原边电压下降，可使系统功率失去平衡，而对于恒功率负荷和电动机负荷，OLTC的变化不会引起负荷功率的恢复，OLTC的变化对系统电压稳定有利；同时研究了对于一般电压敏感和具有动态恢复特性的负荷，反调分接头对电压稳定性的影响。

K.V.A.,step down transformars 11000/415V,DYN 11.three phase,50Hz,onan cooling oil immersed with conservator and tap changer,impedance voltage 4% at 65C

容量为200KVA，降压变压器，电压等级为11000/415V，联结组别为DYN11，三相，频率为50HZ，油浸自冷，带有储油柜和分接开关，阻抗电压：65C时，为4

A logic family that may be in one of three states rather than the usual two-high,low,or high impedance .

一种可以是三个状态之一而不是两个状态之一的逻辑电路体系。

An AB_5-typed hydrogen storage alloy, La_(0.65)Ce_(0.28)Pr_(0.02)Nd_(0.05)Ni_(3.8)Co_(0.7)Mn_(0.3)Al_(0.2)MIB_(5.0, was prepared by twin-roller rapid quenching technology. It was thenmodified with transitional metal oxides of Cr_2O_3, V_2O_5, ZnO, NiO and MnO_2 by ballmilling, respectively. The physical and chemical performances of modified alloyswere studied by X-ray diffraction, scanning electron microscopy,electrochemical impedance spectroscopy, galvanostatic cyclic, and cyclicvoltammetry.

采用双辊淬冷技术制备了AB_5合金La_(0.65)Ce_(0.28)Pr_(0.02)Nd_(0.05)Ni_(3.8)Co_(0.7)Mn_(0.3)Al_(0.2)，用V_2O_5、Cr_2O_3、Cu_2O、Fe_2O_3、MnO_2等不同的过渡金属氧化物对该贮氢合金进行表面球磨改性，用XRD、SEM、EIS、恒电流充放电、循环伏安等方法研究改性前后合金晶体结构，充放电性能等。

The paper applies frequency domain model of transmission system to analyze the frequency characteristics of transmission line, busbar and line trap. Then presents that the surge impedance of busbar capacitance and line trap is different from transmission line, and based on which proposes the concept 'line boundary'.

为此从输电系统的频域模型着手，全面分析了输电线路、母线和阻波器的频率特性，指出母线对地等效电容和阻波器的阻抗显著地不等于线路的特性阻抗，由此提出&线路边界&的概念。

After being analyzed with FEM, impedance tube method was introduced to measure sound transmission loss of glass.

在有限元分析基础上，采用了驻波管法对小样品玻璃进行隔声量测量。

It may or may not provide wide frequency range impedance transformation depending upon the configuration used.

它也许或不能提供宽频率范围阻抗变革取决于配置被使用。

The effects of ZSM5 on the electrochemical properties of the PEO-LiClO4-ZSM5, such as ionic conductivity, lithium ion transference number and interfacial stability with lithium electrode were studied by electrochemical AC impedance spectroscopy and steady-state current method.

交流阻抗实验表明ZSM5的引入可以显著地提高CPE的离子电导率。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了