To achieve the objects of quality, safety, environment, plan and cost etc, and to improve the experience and project management, it is important to implement the middle estimate on No.
为了实现地铁项目的质量、安全、环境、进度、成本等目标，总结经验，提高地铁项目的管理水平，有必要对地铁五号线项目进行中期评价。
Rigs and teams are the main objects of safety management in geological exploration units in which almost all safety accidents occur.
钻机班组是地勘单位安全管理的主要对象，地勘单位的安全事故几乎都发生在钻机班组。
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