method of summation造句

Using the methods of summation by giving a mark and main component analysis , the result indicates that the methods of main component analysis is identical better with reality than the methods of summation by giving a mark , the differentiation trend of types of site conditions of cornus officinalis chiefly receives the accuse in soil fertility factor and the general configuration of the earth ' s surface factor
结果表明：主分量分析法与打分求和法相比，以主分量分析法划分的类型与实际吻合更好；山茱萸立地条件类型的分化趋势主要受控于土壤肥力因子和地貌因子。
It's difficult to find method of summation in a sentence. 用method of summation造句挺难的