METHODS: Spontaneous contraction of gastric antral circular muscle of rats was recorded by four channel physiograph.

方法：用四道记录仪记录胃窦环行肌条的自发性收缩活动；

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Based on the module, a four channel module for the FES of neurons is designed for 12 sites cuff electrode or 10 sites shaft electrode.

在此基础上，设计了用于12个电极点的卡肤电极或者10个电极点的剑状电极四通道神经信号激励模块。

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This paper introduces a digital storage oscilloscope, which can display four channel waveforms on an ordinary magnetic deflection CRT monitor by means of interlaced raster scanning.

本文介绍了一种采用通用的磁偏转crt显示器并以光栅扫描方式显示四道波形的数字存贮示波器。

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All five terrestrial channels - BBC One and Two, ITV, Channel Four and Channel Five - have made the shortlist as well as six digital or satellite channels.

BBC: TV awards shortlist 11 channels

The resulting horrified looks on their faces are absolutely real and the scene made number four on Channel 4's 100 Greatest Scary Moments.

BBC: John Hurt 'moved' by Bafta Outstanding Achievement

The full-featured controller combines a four-channel mixer section with ergonomically laid-out high-quality control elements and an integrated audio interface, all designed to professional specifications.

ENGADGET: Traktor Kontrol S4 hardware interface set to make the scene this winter