例句與造句

1. Bulk density in 0 ~ 20cm , 20 - 40cm and field capacity in 20 ~ 40cm can be simulated with pure nugget effect model , and they are not spatially correlated in sampling scope . 4
   O ~加cm 、 20一40cm土壤容重和2 } 40cm田間持水量符合純塊金效應(yīng)模型，說(shuō)明在采樣范圍內(nèi)它們的空間相關(guān)性不存在。
2. It's difficult to find sampling scope in a sentence. 用sampling scope造句挺難的