例句與造句

1. Mechanics course mainly includes the description of movement of objects , the instantaneous effect of strength , spatial build - up effect of strength , temporal build - up effect of strength , nonindividual body mechanics , mechanical wave and sound , relativity , inalterability and covariability and mechanics foundation of the theory of relativity
   力學(xué)主要內(nèi)容包括物體運(yùn)動(dòng)的描述，力的瞬時(shí)效應(yīng)，力的空間累積效應(yīng)，力的時(shí)間累積效應(yīng)，連續(xù)體力學(xué)，機(jī)械波和聲，相對(duì)性、不變性與協(xié)變性和相對(duì)論力學(xué)基礎(chǔ)等。
2. It's difficult to find covariability in a sentence. 用covariability造句挺難的