Twisted pair transmission security applications are gai…

According to an investigation report on the market's understanding of twisted pair transmission products by a Chinese engineering company in December 2010 by Utech, 75% of the project suppliers have heard about twisted pair transmission products. 53% of customers are using or have trie ...more...

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Introduction to fluorescent lamps

Fluorescent lamps are also known as fluorescent lamps. It looks fine and long. There is a filament at each end of the fluorescent lamp. The lamp tube is filled with a small amount of argon and thin mercury vapor. The inner wall of the lamp tube is coated with phosphor, and the gas between the ...more...

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Evacuation lighting

In the event of a normal power failure, the emergency lighting section is provided to enable personnel to easily and accurately locate the exit of the building. Evacuation lighting should normally be provided in the following locations: (1) A large number of densely populated public buildings ...more...

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Zhongwang CAD+ is directly compatible with mainstream a…

[October 15, 2012, Beijing, Metal Processing Online News] Recently, Zhongwang Software launched the Zhongwang CAD+ platform software, which can directly open architectural drawings and identify custom entities such as walls, doors, windows and stairs. And other architectural elements. Great for des ...more...

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UK research and development of new solar energy equipme…

British researchers recently reported that they have developed a new type of solar energy device that can generate enough voltage to charge lithium-ion batteries in the darker light and can be used in future mobile devices such as mobile phones and e-books, e ...more...

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Ground source heat pump system works popular science kn…

Ground source heat pump is a form of water source heat pump, it is the use of water and ground energy (groundwater, soil or surface water) for cold and heat exchange as a source of heat and cold water source heat pump in winter to heat "Come out to supply indoor heating, at this time can be a&q ...more...

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Sanitary ware installation process and washing essentia…

Sanitary ware installation process Toilet process Check the ground drain pipe → align the nozzle → level the alignment → draw the mark → punch the hole → apply the putty → set the rubber pad → screw the nut, → mark the two holes on the ...more...

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