例句與造句

1. in general, three developing phases of models of lake eutrophication have been arisen : ( 1 ) single limited factor models, such as the phosphorus model . ( 2 ) models of multiple limited factors, such as models for predicting the primary production of phytoplankton . ( 3 ) eco-dynamic models, which are the main developing trend of lake models at present and for the future
   總的來說，湖泊富營養(yǎng)化模型大概經(jīng)歷了以下三個發(fā)展階段：（1）單限制因子模型，如磷模型；（2）多限制因子模型，如浮游植物初級生產(chǎn)力估測模型；（3）生態(tài)動力學模型，它是目前也是以后發(fā)展的主流。
2. It's difficult to find multiple limit in a sentence. 用multiple limit造句挺難的