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在微灌系统设计中，当采用毛管进口安装调压管设计方法时，通常将一条支管上的毛管进口调压管长度分成若干等级。本文分析了调压管长度分级对灌水均匀度产生的影响，提出了改进毛管调压设计的方法。
In the design of micro-irrigation system, when using capillary inlet installation regulator design method, usually a branch of the capillary inlet pressure regulator tube length is divided into several levels. In this paper, the influence of the length of the pressure regulating tube on the uniformity of the irrigation is analyzed, and the method of improving the capillary pressure regulating design is put forward.