以下为句子列表：
英文: From the echo response, the input impedance of the loop can be determined, from which the loop topology can be determined.
中文: 通过回波响应，就能确定环路的输入阻抗，据此就能确定环路拓扑。
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英文: If the node is at, or near to, ground then a grounded guard ring will be appropriate, if it is at some other potential it may be necessary to use a high input impedance buffer amplifier, with its input connected to the node, to force the guard ring to the
中文: 如果被保护的节点的电位是（或接近）零电位，采用地线保护环最为合适；如果节点电位是其他值，那么可以用高输入阻抗放大器组成缓冲器，输入端连接该节点，输出端连接保护环。
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英文: Owing to weak output signals integrated amplifier is designed , which is characteristics of shorter wires , higher input impedance , higher common mode rejection ratio and series mode rejection ratio , smaller zero shift and temperature shift .
中文: 由于输出信号微弱，采用短线路传输，高输入阻抗，共模抑制比和串模抑制比高，温漂和零漂小的集成运放电路。
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英文: These figures show that the improvement of input impedance is within a factor of ten.
中文: 这些数字表明,输入阻抗的改进值为一个数量级.
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英文: In this paper, a simple and practical electrically small planar unipole antenna is presented, and the dependences of input impedance on dimension of the antenna and frequency are investigated.
中文: 本文提出一种简单而实用的平面结构的单极子电小天线 ,研究输入阻抗随天线外形尺寸和频率的变化规律。
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