灌溉渠道 irrigation channels ; [农工] irrigation canal
灌溉渠网 network of irrigation channels ; irrigation network
灌溉水渠 Irrigation Ditch ; acequia
灌溉渠系 irrigation canal system
灌溉暗渠 karez ; qanat
灌溉干渠 irrigation main ; main irrigation canal
地下灌溉干渠 buried main
苏北灌溉总渠 Subei General Irrigation Canal ; north jiangsu irrigation canal
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