Based on the work of Hegel, using materialism dialectics, the thesis made a systematic exposition on the definition, necessity, condition, process, status and function of reflection.

本文以黑格尔对反思的探讨为基础，运用唯物辩证法，系统地揭示了反思的定义、必然性、条件、过程、地位和功能。

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Some construction enterprises take actions in variety to control and keep them from safety accidents, and work safety process consists of systematic work steps.

施工企业采取各种措施和活动来预防和控制施工作业过程中发生的安全事故，这些措施和活动的工作步骤序列构成施工企业的安全生产过程。

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Systematic monitoring work is arranged for the project, the deformation on expressway and the box posture control are focused on the whole jacking process.

在高速公路路面和箱涵布置大量监测点，重点对路面位移和箱涵顶进姿态进行监测。

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