求翻译：决策阶段的投资估算是项目建设前期编制项目建议书和可行性研究报告的重要组成部分，是进行投资方案选择的重要依据之一，也是经济效果评价的基础。投资估算的准确与否直接影响到可行性研究工作的质量和经济评价的结果，因而对建设项目的决策及成败起着十分重要的作用。为了合理确定和有效做好工程投资决策阶段的造价控制, 应重视项目投资决策的深度和广度,应用有效的控制措施。是什么意思？

Investment decision-making phase project pre-construction estimate is the preparation of project proposals and feasibility study report of an important part of the investment program is an important basis for selection of one of the basis of economic impact evaluation. Invest or not estimate the acc

Decision-making phase of the construction of the project is estimated investment upfront preparation of project proposals and feasibility studies for investment, is an important component of the program of choice, and is also one of the important economic effects based on the basis of the evaluation

Decision phase of investment estimation is the early stage of project construction important part of the preparation of project proposals and feasibility study report, is to select one of the important basis of the investment programme, is also a basis for evaluation of economic effect. Feasibility