例句與造句

1. considering the characteristic of vibration of rotary machines, this thesis makes a thorough discussion of forecasting the trend of vibration by a means of time series model, puts forward means of processing the nonstationarity, nonnormality and singular value of the field data and distinguishing their models to build a appropriate model and gets precise mulstep forecast to the trend of vibration
   針對(duì)旋轉(zhuǎn)機(jī)械的振動(dòng)的特點(diǎn)，本文深入討論了利用時(shí)間序列模型預(yù)測(cè)振動(dòng)趨勢(shì)的方法，并提出了如何處理現(xiàn)場(chǎng)數(shù)據(jù)的非平穩(wěn)性，非正態(tài)性，奇異值和模型類型判別方法，以構(gòu)建合適的模型，實(shí)現(xiàn)對(duì)振動(dòng)趨勢(shì)進(jìn)行準(zhǔn)確的多步預(yù)測(cè)。
2. It's difficult to find nonnormality in a sentence. 用nonnormality造句挺難的