常見例句雙語例句In view of the demand of efficient irrigation in greenhouse, a new subsurface drip irrigation with PVC tube was developed.針對(duì)溫室節(jié)水灌溉需求,用PVC管制成了簡易地下滴灌管。The present invention discloses a transfusion drip tube which wants to solve the technical problem that air in a drip tube is automatically discharged.本發(fā)明公開了一種輸液滴管,要解決的技術(shù)問題是將滴管內(nèi)的空氣自動(dòng)排除。ip.comThe moisture rate of soil above drip tube is higher than which under the drip tube, in vertical soil moisture is related soil depth with a nonlinear function.滴灌帶以下的含水率高于滴灌帶以上的含水率,垂直方向含水率的分布與土壤深度之間符合二次函數(shù)關(guān)系。 返回 drip tube