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low-pressurepipe irrigation
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low-pressurepipe irrigation
Encyclopedia
农学
农业水土工程
释
low-pressurepipe irrigation
低压管道输水灌溉
利用高位水源和缓坡地形落差所提供的自然压力水头或利用低扬程机泵将灌溉水加压(一般压力≤30千帕),再通过低压管道把低压灌溉水输送到田间地头(低压输水管网的最末一级管道出水口工作压力水头一般只需3千帕左右即可),然后利用配套的给水栓进行沟灌或小畦灌的灌溉系统。
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first-order derivative
first-order design
first-order difference
first-order differential
first-order differential equation
first-order efficiency
first-order efficient estimator
first-order equation
first-order formula
first-order functional calculus
first-order hold
first order induction schema
first-order language
first order logic
first-order logic
first-order memristor
first-order model theory
first-order necessary condition
first-order operator
first-order optical design
first order phase transition
first-order phase transition
first order phase transition and high order phase transition
first-order pole
first-order predicate
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更新时间:2026/10/19 17:37:38