求翻译：文中在对工程项目承包商选择相关理论评析的基础上，阐述了承包商选择的要求，及在工程项目承包商选择与评价中存在的问题；并对现阶段工程项目承包商评价常用方法进行了比较分析。是什么意思？

The article in the project contractor selection based on the theory of assessment, explained the requirements of the contractor selection, and the project contractor selection and evaluation problems; and at this stage the project contractor evaluation methods were used comparative analysis.

In the choice of contractor communication projects relevant theory assessment, elaborated on the basis of the choice of contractor for the project, and contractor selection and evaluation; and the problems that exist in the current project contractor evaluation methods commonly used for the comparat

In the article in chooses the correlation theories evaluation to the engineering project contractor in the foundation, elaborated the contractor chooses the request, and the question which exists in the engineering project contractor choice and the appraisal; And appraised the commonly used method t

In the article comments on the choice of the contractor in theory on the basis of describing contractor selection requirements and contractor selection and evaluation of existing problems; and on the present contractor conducted a comparative analysis of assessment methods.

In the article comments on the choice of the contractor in theory on the basis of describing contractor selection requirements and contractor selection and evaluation of existing problems; and on the present contractor conducted a comparative analysis of assessment methods.