Is a statistical diagram drawn to compare two sets of data 是一种统计图，被绘制用来比较两个数据集。
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Engineering diagram drawing practice - recommendations for logic diagrams 工程图制图惯例.第4部分:逻辑框图推荐标准
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Engineering diagram drawing practice - recommendations for mechanical fluid flow diagrams 工程制图惯例.第3部分:绘制机械流体流程图推荐标准
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Firstly the electric - drive equipment is simplified in order that its circuits " working status could be obtained by computer by disposing the sampling value . secondly interface program is designed under objectarx2000 in order to drive the static circuit diagram drawed by autocad . lastly sampling value is transferred through the communication between pc and several sampling scms 有几个关键性技术问题得到了解决：首先将电传动装置进行简化，使其电路工作状态通过计算机对电压采样值的处理得到确定；其次利用二次开发工具objectarx2000开发出接口程序，实现了对autocad所绘制电传动电路图的驱动；最后通过pc机同多个采样单片机的通讯解决了对大量采样数据的传输问题。
