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应用图解法求水平梯田挖方量,就是利用一张事先绘制好的求解图进行计算,方法简便,准确速成.求解图如下(作图法从略):
The application of graphical method to find horizontal terraces excavation, is the use of a good solution to draw a good map to calculate, the method is simple, accurate and quick. Solution diagram as follows (drawing method omitted):