Values of each segment of this model were adjusted to give an optimum match to aortic input impedance both in values of modulus and phase frequencies.

模型的各段经优化后可使模型与人体动脉系统的输入阻抗的幅频值和相频值相符合。

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If you change the reflected load impedance, you will find yet another optimum spot.

如果你改变了反映负载阻抗，你会发现又一个最佳位置。

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Up till now, there is no accurate standard for the optimum acoustic impedance of the coupling medium.

目前国内超声医学界对最佳耦合剂声阻数值的选择尚无较为准确的说法。

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To make sure that the headphones are ready for use at any time, they have been fitted with a 3.5mm stereo jack, and the nominal impedance has been reduced for optimum connection to mobile players.

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