例句與造句

1. Based on re - classification of abbott - firestone curve into three zones , surface bearing index , core fluid retention index and valley fluid retention index were introduced to evaluate the bearing capability and lubricant retention property of a machined surface . the changing tendency of these three indexes was also made clear through experiments , and the relations between them and fractal parameters were built up . at last , it was found that the coefficient c is also suitable to evaluate the bearing capability and fluid retention property of a machined surface
   本文在重新劃分abbott - firestone曲線的基礎(chǔ)上引入了表面承載指數(shù)、核心區(qū)液體滯留指數(shù)和谷底液體滯留指數(shù)三個指標(biāo)分別評價表面承載性能和儲油性能，同時通過試驗找到了這三個評價指數(shù)的變化規(guī)律，最后建立了它們和分形參數(shù)之間的關(guān)系，并發(fā)現(xiàn)尺度系數(shù)同樣可以用來評價表面的承載性能和儲油性能。
2. It's difficult to find surface bearing in a sentence. 用surface bearing造句挺難的