Electric power Line Inspection is a basic work for effectively guaranteeing the safety of an electric power system.
电力线路巡检则是有效保证电力系统安全的一项基础工作。
This is the effective way for guaranteeing the safety of planes and vital for the safety and quality of flying of planes.
避免重着陆是确保飞机飞行安全的坚实基础，对飞行全过程的安全和质量起到重要作用。
This paper analyzes the factors influencing the goaf safety, and based on these, advances some effective methods of guaranteeing the safety of goaf.
分析了影响采空区安全的因素，在此基础上提出了保证采空区安全的有效方法。
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