utility diversion 中文意思是什麼
utility diversion
解釋
公用事業設施的改道-
With backward irrigation method, rough diversion operation used in agricultural irrigation brought about serious water wasting, moreover, most of irrigation works are outdated and without repair caused serious leakage, as a result, the water utility rate of irrigation is just 0. 38 in weining irrigation area of ningxia, so it is imperative to reform water - saving engineering
寧夏衛寧灌區灌溉方式落後,農業灌溉實行大引大排,浪費嚴重,且灌溉工程老化失修,滲漏嚴重,平均灌溉水利用率只有0 . 38 。因此,衛寧灌區實施節水改造勢在必行。實施節水改造后的衛寧灌區本文稱為沙坡頭灌區。
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