例句與造句

1. The linear regression models and the non - linear regression models are established respectively , which can be used in monitoring the grassland biomass based on the vegetation indices . finally , in order to establish the grassland biomass monitoring models with higher accuracy the different forms of the non - linear regression model were established respectively , including the quadric equation , the cubic equation , the logarithmic equation , and the exponential equation . the repeated tests indicated that the cubic equation is the best one in terms of the suitability of use in the study area
   建立遙感植被指數(shù)和草地生物量的一元線性回歸模型和非線性回歸模型，通過反復(fù)分析論證得出，非線性回歸模型相對于一元線性回歸模型與實(shí)測生物量更為符合；通過分析植被指數(shù)與實(shí)測生物量的不同非線性回歸模型的結(jié)果，表明三次方程y = - 18 . 626rvi ~ 3 + 220 . 317rvi ~ 2 - 648 . 271rvi + 691 . 093是最適用于監(jiān)測研究區(qū)草地生物量的非線性模型。
2. It's difficult to find exponential equation in a sentence. 用exponential equation造句挺難的