你在屏幕或打印机上显示的图形类型本身可以被分成几个种类，这叫做“基本图形”。它们是。
The types of graphics you display on the screen or the printer can themselves be divided into several categories, which are called "primitives." These are.
当医生知道什么是正常心音图形的时候，就可以将患者心音与正常心音相比较，并在计算机屏幕上或者打印件上很容易地看出异常。
When doctors know what healthy waves look like, they can compare their patients' heart sounds to the healthy waves and easily see aberrations by simply looking at a computer screen or printout.
软件包括6个功能模块：操作指导，采样，数据管理，频谱分析，相关分析及声图。分析图形及参数表可屏幕显示或打印绘图。
The software of the system consists of 6 function modules: operation instruction, sampling, management of data, analysis of spectrogram, correlogram and sonagram.
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