在室内，四轮移动式液压升降平台可以用来悬挂宣传标语、横幅、更换特效灯、布置高空展台等。
In the room, the four wheeled mobile hydraulic lifting platform can be used to hang slogans, banners, replace the special effects lights, such as the layout of high-altitude booth.
提出了一种新型升降压变换器作为高亮度白光led灯的驱动方案。
A novel Boost-Buck converter as high brightness white LED lamp driver circuit was provided in this paper.
当机门在关闭时受阻，会有一个特别的“升降机门受阻”显示灯亮著。
When the landing door is obstructed while closing, the special "door obstructed" sign lights up.
当机门在关闭时受阻，会有一个特别的“升降机门受阻”显示灯亮著。
When the landing door is obstructed while closing, the special "door obstructed" sign lights up.
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