| 1. | In the analysis of section chart , it will frequently do the operation of divide up and investigate the exceptional region , it need to do the operation of reduce and magnify 、 the magnify and drag of the area which the rectangle selected to the section chart 在对剖面图的分析过程中,经常要进行异常区域的划分和研究,就需要对剖面图进行缩小放大、矩形选定范围放大、拖动操作。 |