例句與造句

1. Primarily there are two aspects : 1 ) the calculation model of the value of land classifying units - - model of time distance attenuation . in the calculation model of the value of land classifying units , author brings forward the model of time distance attenuation . in this model adopting the network analysis , and by establishing the road network , and proceeding path analysis , computing the time distance , then proceed the exponential attenuation or straight line attenuation on time distance , get the value of influence factor of the land classification unit
   主要有兩個(gè)方面： 1 、定級(jí)單元分值計(jì)算模型? ?時(shí)間距離衰減模型在定級(jí)單元分值的求取模塊中，提出了時(shí)間距離衰減模型，模型中采用網(wǎng)絡(luò)分析的方法，通過建立道路網(wǎng)絡(luò)，進(jìn)行路徑分析，求取時(shí)間距離，進(jìn)而按時(shí)間距離進(jìn)行指數(shù)衰減或直線衰減，得到定級(jí)單元因素因子影響分值。
2. It's difficult to find exponential attenuation in a sentence. 用exponential attenuation造句挺難的