例句與造句

1. The approach for dealing with the upper surface boundary conditions to adapt the complicated situation such as infiltration of precipitation or irrigation , surface ponding , runoff formation , evaporation and evaportanspiration as well as the alternative occurrence of these situations are proposed
   提出了適應降雨灌溉、蒸發(fā)等復雜的上邊界條件的處理方法，可以用來統(tǒng)一計算土壤剖面降雨灌溉入滲、地表積水、地表產流、蒸發(fā)、蒸騰以及當這些現(xiàn)象交替出現(xiàn)時的水分運動過程。
2. It's difficult to find surface ponding in a sentence. 用surface ponding造句挺難的