过去我们在进行泥沙颗粒分析工作时,由于受所取水样和含沙量的限制,多采用滴定管(底漏管)分析方法。这个方法,是根据奥邓原理而创立的,所以必须绘制奥邓曲线,用图解法求到颗粒的级配,由于操作程序繁杂,校正数值多,计算、绘图等工作量大,工效很低。大躍进以后,虽然加强了劳动组合,改进了操 In the past when we carried out sediment particle analysis, due to the water samples and sediment concentration limits, the use of burettes (bottom drain) analysis. This method is based on the principle of O’Donough and was founded, so we must draw the Austrian Deng curve, the grading of particles obtained by graphic method, due to complex procedures, the correction of numerical, calculation, graphics and other heavy workload, low efficiency. After the Great Leap Forward, although the workforce has been strengthened, it has been improved