在外部电流下能在阴极处产生出氢气。
An external jolt of electricity helps generate hydrogen gas at the cathode.
外部电流转换器扩大了准确监测的电流范围。
External current transformer extends current range for accurate monitoring.
而抑制(SUPPRESS)或相对(REL)功能则用来修正外部电流偏置。
SUPPRESS or REL controls are used to correct for external current offsets.
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