施工项目前期规划与预控制是在复杂环境下解决各种矛盾的重要方法。
The pre-planning and pre-control of the construction projects are important means to resolve every type of contradiction under mixed environments.
预埋管混凝土裂缝灌浆修补技术，是混凝土裂缝修补技术中的一种新尝试，同时也为新型自愈合仿生混凝土材料的研究和开发作前期准备。
Repairing concrete crack through embedded pipe is a new attempt in the field of structure repairing and a preparation for a kind of intelligent concrete with self-healing capability.
工程预可行性分析是桥梁和隧道建设前期工作的重点组成部分，往往成为项目立项的控制性因素。
Project pre-feasibility analysis, a crucial part of bridge and tunnel preparatory work construction, often becomes a controlling factor of a project.
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