铁路大中型建设项目在审批立项之前，都必须进行预可行性研究。
The pre feasibility study must be put forward before the appraisal and the establishment of the large scale and middle scale railway construction projects.
建设项目环境影响评价是项目的立项、审批、建设、验收、运行、管理过程中的一个重要环节。
The environmental impact assessment of construction project is an important part of the courses of a project, including program, approval, construction, inspection, operation and management.
企业管理、立项审批、安全生产。
Enterprises management, project approval and setting, production safety.
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