ICS93.160P57谓黔中华人民共和国国家标准GB/T20203-2006农田低压管道输水灌溉工程技术规范Technicalspecificationforirrigationprojectswithlowpressurepipeconveyance2006-02-24发布2006-07-01实施中华人民共和国国家质量监督检验检疫总局中国国家标准化管理委员会发布GB/T20203-2006目次前言··················································································，·····························⋯⋯m1范围···············································································································⋯⋯12规范性引用文件·······································，························································⋯⋯13术语和定义························································································，···········⋯⋯14工程规划····································································，································⋯⋯24.1规划原则··········································，·····························........·····⋯⋯，.........⋯⋯24.2主要技术参数····································································..············............⋯⋯34.3水量供需平衡分析········································································，，················⋯⋯34.4管道系统布置与畦沟灌水要素...
