standard of impedance的意思|示意

This paper gives a method to evaluate the quality of the impedance-matching experiments by the relation between standard and unknown materials shock wave velocities.

介绍了用标准材料与待测材料的冲击波速度的关系评价阻抗匹配实验质量的一种方法。

This paper analyzes the require of distribution transformer short impedance in national standard and puts forward a method to test the capacity of transformer with steady impedance voltage.

根据新实施标准对隔爆型干式变压器性能参数进行调整，对其变压器的短路阻抗进行了理论分析和计算，并给出了矿用隔爆型干式变压器的短路阻抗值。

The calibration of four-terminal-pair(4TP) impedance meters at their working frequencies requires the knowledge of 4TP standard capacitor frequency characteristic.

对四端对阻抗测量仪在其使用频段内进行校准，须确定四端对标准电容器的频率特性。

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。