而选频平衡法的核心是选频放大器。
The core of this method is the selected-frequency amplifier.
基于系统温度分辨力的要求，对光学系统的相对孔径及选频放大器的带宽进行了优化设计。
Bandwidth of amplifier and relative aperture of optical system are optimized based on the requirement of temperature resolution.
基于系统温度分辨力的要求，对光学系统的相对孔径及选频放大器的带宽进行了优化设计。
Bandwidth of amplifier and relative aperture of optical system are optimized based on the requirement of temperature resolution.
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