例句與造句

1. at present, some existing models used to analyze observation data of dam monitoring such as multiple regression and neural network are formulated on the basis of a large number of data . in case of short-period or incomplete observation data, they are helpless
   而現(xiàn)有的大壩監(jiān)測(cè)資料分析方法如多元回歸分析方法、神經(jīng)網(wǎng)絡(luò)方法等都建立在大樣本量的數(shù)據(jù)基礎(chǔ)上，對(duì)短期或有殘缺的資料無(wú)能為力。
2. It's difficult to find incomplete observation in a sentence. 用incomplete observation造句挺難的