And gain, common mode rejection ration in folded cascade amplifier.
折叠共源共栅放大器的增益、共模抑制比等。
The four common ultrasonic methods for measuring Q value in the laboratory, rise time, pulse echo, spectral ration and waveform inversion techniques are reviewed.
回顾了实验室中超声波测量Q值的四种常用方法：上升时间法、回声法、频谱振比法和波形反演法。
Objective: To set up the dual-index sequence analytical method for UV fingerprint spectra (FPS) in which the dual indices are common peak ratio and variant ration.
前言：目的：建立多维共有峰率和变异率双指标序列紫外指纹图谱分析甘草样品。
Objective: To set up the dual-indexes sequence analytical method for far-infrared fingerprint in which the dual indexes are common peak ratio and variant ration.
目的：建立多维共有峰率和变异峰率双指标序列远红外指纹图谱分析自然铜。
Objective: To set up the dual-indexes sequence analytical method for far-infrared fingerprint in which the dual indexes are common peak ratio and variant ration.
目的：建立多维共有峰率和变异峰率双指标序列远红外指纹图谱分析自然铜。
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