2、anJingfourirrigationtype.IrrigationchannelsformoreTuQu,s.Thenextstepirrigation,oved,adheretotheimportanceofthepipelineirrigationgraduallytotheprinciplesdonotshake,adheretotheprincipleofJingGuanOuapipelinetoshake,insistonahighstandardconstruction,thescientificmanagement,theneoved. K