在进行低阻抗测量时，常常要考虑测量的速度。
Instrument speed is most often a consideration when making low impedance measurements.
测试了低汞锌粉的析氢速度和各种合金锌电极的析氢电位，用交流阻抗法来测量电池的内阻。
The velocity and potential of release hydrogen on different zinc alloy were measured, the resistance of battery was measured by alternate impedance method.
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