assign phase造句

the analysis method has been adopted to analysis the scale, allocation and benefits of the world bank agricultural loan projects in china . loan allocation in each assigned phases and related features has been studied carefully, the project benefits in terms of economic, social and environment have been summarized and factors affected the project benefits have been identified
本文采用实证研究的方法对我国农业利用世行贷款的规模、结构和效益进行了研究，分析了我国农业利用世行贷款的在不同阶段规模、地域等分布特点，归纳总结了世行农业贷款项目在经济、社会和环境方面的效益及其影响因素。
It's difficult to find assign phase in a sentence. 用assign phase造句挺难的