From practice of engineering, LED characteristic of light source, its development trend and using LED in lighting engineering are introduced, and fixing attention are also discussed.
本文通过工程实际阐述LED光源特点、发展趋势以及LED在照明工程中的应用和LED照明产品在工程安装中应注意的事项。
Objective: in order to meet medical practical needs for local lighting during medical procedures, a medical headlamp was designed and made popularized in clinical practice.
目的：为了满足医护人员在医疗工作中进行局部照明的实际需要，自行设计了一种医用头灯，并使其能够在临床中得到普及和广泛应用。
All the practice shows, the measures can protect the architecture and equipment of the cement plant from damage of lighting strike.
实践证明，这些措施可有效保护水泥厂的建筑结构和设备遭受雷击破坏。
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