resistance n. 1.抵抗,反抗,抗拒,抵御;敌对,抵抗力,反抗力,阻力,【生物学】抗病性。 2.【电学】电阻;阻抗;电阻器。 electric resistance 电阻。 abrasive resistance 耐磨力[度]。 dead resistance 吸收[消耗,镇流]电阻。 passive resistance 无源电阻;消极抵抗。 a piece of resistance 主要品,压轴,出类拔萃的东西;主菜,压桌菜(=pièce de résistance)。 make some [no] resistance 进行[不]抵抗。 offer [put up] resistance to [against] 抵抗。 resistance welding 电阻焊接,电焊。 take the line of least resistance 采取阻力最小的路线;采取最省力的方法。
By constructing the necessary condition and sufficient condition for feedback to exist in a circuit , can derive the methods of short circuit or open circuit for the load or the signal source resistance respectively of the feedback network , to analyze the configurations of the negative feedback circuits 通过构建电路存在反馈的必要条件和充要条件,可引出令反馈电路的负载和信号源内阻分别短路或开路的方法,用于分析负反馈电路的组态。
If line length is half wave at a certain frequency and both the load resistance rt and source resistance rs are higher than the characteristic impedance zo , then both the voltages at input and at load are maximum at that frequency and both the voltages at input and at load are minimum at half of that frequency 负载端电阻及电源电阻均高于传输线特性阻抗情况下,当线长为某频率波长之半波,则输入端与负载端电压在该频率均为最高,在该频率之半时则电压均为最低。
If line length is half wave at a certain frequency and the load resistance rt is lower while source resistance rs is higher than the characteristic impedance zo , then both the voltages at input and at load are minimum at that frequency and both the voltages at input and at load are maximum at half of that frequency 负载端电阻低于传输线特性阻抗及电源电阻高于传输线特性阻抗情况下,当线长为某频率波长之半波,则输入端与负载端电压在该频率均为最低,在该频率之半时则电压均为最高。