Major hazard installation is one important factor influencing on urban safety level. Meanwhile safety planning for major hazard installation is one of effective method to improve urban safety level.
城市重大危险源是影响城市安全水平的一个重要因素，对城市重大危险源的规划和整治是提高城市安全水平的一个重要途径。
In this paper, the method of planning and program of management mode of internal airplane model engineering is discussed including strategy planning, feasibility analysis and multi-level program.
本文对我国飞机型号工程管理模式——规划和计划方法进行了深入的探讨，包括飞机型号工程的战略规划、项目可行性研究及项目多层计划等内容。
Major hazard installation is one important factor influencing on urban safety level. Meanwhile safety planning for major hazard installation is the most effective method to improve urban safety level.
城市重大危险源是影响城市安全水平的一个重要因素，对城市重大危险源的规划和整治是提高城市安全水平的一个重要途径。
Major hazard installation is one important factor influencing on urban safety level. Meanwhile safety planning for major hazard installation is the most effective method to improve urban safety level.
城市重大危险源是影响城市安全水平的一个重要因素，对城市重大危险源的规划和整治是提高城市安全水平的一个重要途径。
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