论述了分析图形的各种方法，揭示了一些常用的图形结果在分析中的应用。
The methods of analyzing graphics are discussed. The application of some common graphic results in analysis is indicated.
文中通过分析图形中的边角关系，推导出确定椭圆大、小圆弧半径长度的通用计算公式。
The author analyzes the relationship between side and Angle in a diagram to deduce a new general-purpose formula which can determine the length of arc radius and the size of an ellipse.
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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