例句與造句

1. The feasibility study of this project and the method and process of structured system analysis are introduced in succession . the primary content of requirement investigation and the function requirements are presented . partial operations in this field are described using operation flow diagram and the process of disassembling and analysis of this system is described using layered dfd ( data flow diagram )
   首先簡要介紹了技術(shù)方案的選擇和項目的可行性研究；接著簡要介紹了結(jié)構(gòu)化分析法的方法步驟，介紹了本項目需求調(diào)查的主要內(nèi)容，并用業(yè)務(wù)流圖對應(yīng)用領(lǐng)域的部分業(yè)務(wù)進(jìn)行了描述；用分層數(shù)據(jù)流圖描述了對系統(tǒng)的分解和分析過程，較詳細(xì)地描述了系統(tǒng)的功能需求。
2. It's difficult to find partial operation in a sentence. 用partial operation造句挺難的