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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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winding
winding dilemma
winding index
winding machine
winding mode
winding number
winding number of a mapping
winding of a knot
winding of a torus
winding problem
winding rate
winding shaping
winding test of raw silk
wind instrument
wind itching
windkessel model
windkessel vessel
windlass
wind lift water irrigation
wind load
wind loading
wind loading deformation observation
wind load resistance performance
wind measurement system of windfarm
wind-mill
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