常見例句雙語例句The irrigation water requirement is mainly focused on full irrigation .本論文主要進(jìn)行充分灌溉條件下農(nóng)業(yè)灌溉需水量的計(jì)算。Based on the data collected in this study, net irrigation water requirement of main crop in china has been gotten.根據(jù)收集到的資料,計(jì)算得出全國主要作物的凈灌溉需水量。Rainfall frequency analysis is used commonly to determine probability of irrigation water requirement, and to choose typical years for irrigation project design.灌區(qū)灌溉設(shè)計(jì)中,常用降雨量進(jìn)行頻率分析來選取灌溉設(shè)計(jì)保證率及其對應(yīng)典型年。 返回 irrigation water requirement