Now this shield is driven by a unity-gain, low impedance amplifier (Guard).
这个屏蔽由一个单位增益的低阻抗放大器(保护)驱动。
2
This guard is driven by a unity-gain, low impedance amplifier.
该保护端由一个单位增益的低阻抗放大器驱动。
3
The utility model is composed of a guard circuit, an oscillating circuit, a power amplifier circuit, a volume control circuit, an accident noticing circuit, etc.