在低阻抗之下，由于电荷迅速消散，所以干扰的影响不明显。
At low impedance levels, the effects of the interference aren't noticeable because the charge dissipates rapidly.
一种用于有效场极化介质空气净化器的过滤介质，包括两层介电材料，并且在低阻抗的该介电层之间夹设有高阻抗的透气网。
A filter media for an active field polarized media air cleaner comprises two layers of dielectric material, and a high-impedance permeable net is sandwiched in the low-impedance dielectric layer.
而保护意味着使用保持在与高阻抗电路相同电位的附加的低阻抗导体来阻止可能的干扰电压或电流。
Guarding implies the use of an added low impedance conductor, maintained at the same potential as the high impedance circuit, which will intercept any interfering voltage or current.
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