main irrigation canal

基本解释

The paper proposes a method of the piecewise water distribution of main canal according to the characteristic of irrigation canal in mountainous area.
针对山区灌溉渠道的特点，提出了干渠分段配水的方法，分别对来水充足和来水不足条件下的干渠配水进行了理论分析和实例计算，取得满意成果。
Filling the role of both transportation and distribution, the main canal in Bojili Irrigation District has long flow time, high flux and large water loss.
簸箕李灌区的干级渠道作为输配两用渠道，其过流时间较长，流量较大，水量损失亦较大。
By means of numerical calculation, model test and field investigation the sedimentation of the underground culvert at the main irrigation canal in North -Jiangsu Province was analysed.
通过数值计算、模型试验和现场观测，对通榆河与苏北灌溉总渠立交地涵的泥沙淤积进行了综合分析。