Electroencephalogram (EEG), as a principal signal in detecting brain activities, assumes a dominant position in the current research for the anesthetic depth monitoring.

脑电图作为检测大脑皮层活动的最主要信号，在目前麻醉深度监测研究中处于主导地位。

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It can effective extract principal features of the signal and repress the noise.

它可有效地提取信号的主要特征和抑制噪声。

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The influence of the principal parameters of optical chirp reversal devices on ability to restore signal wave form and pulse duration has been analysed and simulated.

分析和数值模拟了用瞬态简并四波混频实现光学啁啾反转的器件的主要参数对恢复信号波形和脉冲宽度能力的影响。

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Well, there are four principal ways that composers signal to us the whereabouts of the down beat.

以下有四条主要途径,是作曲家用来告诉我们重拍在哪里的

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