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- This paper introduces the basic theory, structure, data transfer protocol of DS2450 1-wire Quad A/D Converter, and the application of four channel Digital Storage Oscilloscope. 摘要介绍了DS2450单总线四通道模拟转换器的基本原理、结构、数据传送协议，以及在四通道数字存储示波器中的应用。
- four channel recorder 四导程记录器
- Repeat with a four channel tape and the number of patterns goes up to sixteen. 若用四条孔道带，孔型数就会增加到16种。
- LFQ570 Slitting rewinder slitting all sorts of fax paper , register paper and various recording paper roll . LFQ570分切机适用于各种传真纸、收银机纸及各种记录纸卷。
- Four channel video assigner and multi input video assigner reduce quantity of single video assigner.Red uced cubage of equipment, enhanced stability of system. 四通道视频分配器，多输入视频分配器减少了单个分配器的数量，能减少设备体积，提高系统的稳定性。
- The estimation formula of ICI for I-UWB was derived with the simulation of the worsening impact on SER with the transmission rate increase under four channel modes defined by IEEE. 首先推导了I-UWB的码间干扰估算公式，然后仿真了在IEEE定义的4种信道模式下，随着传输速率的增加码间干扰对误码率的恶化作用。
- Result The software is capable of making realtime acquisition and display of four channels of myoelectric potential signals and one channel of operation signal synchronously. 结果它能对四路肌电信号、一路操作控制信号进行实时、同步地采集、显示以及离线分析、处理。
- thermal type cardiograph recording paper 热显型心电图纸
- black wax type cardiograph recording paper 黑底蜡型心电图纸
- In contrast, oscilloscope operation is intuitive, but scopes have no more than four channels. 相反，示波器可以直接显示输入信号，但是示波器没有更多的通道（般的示波器为双通道，或者四通道，多于这些的很少见。
- frequency calibrated recording paper 频率校准记录纸
- electrosensitive recording paper 电敏记录纸
- Four channel fast coincidence unit 四道快符合单元
- electrothermal sensitive recording paper 电热敏记录纸
- A Brief Talk on Type TC Four Channel Coal Burner TC型四通道煤粉燃烧器浅谈
- magnetic phonographic recording paper 磁带录音纸
- It has four channels testing ability, can test the 4 parameters of pressure , temperature, acceleration and the battery voltage in real time. Series product is being made now. 它具有四兆通道测试能力,可以对压力、温度、加速度、本机电池电压四个参数进行实时测试。目前已形成系列化产品。
- magnetically sensitive recording paper 磁敏记录纸
- chemically processed recording paper for ECG 化学显迹型心电图纸
- electro-thermosensitive recording paper 电热感记录纸
