[Zhongbo.com] At present, the value of mobile phones is valued by more and more consumers. In the eyes of many users, the design of products has surpassed the hardware configuration, becoming the first factor affecting consumers to buy a mobile phone. In the era of full screen, due to technical limitations, the flagship mobile phones of various manufacturers are mostly similar. Therefore, most brands like to innovate on the back cover of mobile phones, and the mainstream material of the back cover has also changed from metal to glass.
This also makes many users can't figure out, obviously the metal shell has a better texture, but why is it replaced by glass material? The author believes that the main reasons are as follows: First, the glass back cover can play more patterns, thanks to the improvement of coating technology, the glass back cover can achieve a variety of effects such as solid color, gradient, texture, etc. The semi-transparent effect also has a good aesthetic, which provides manufacturers with more design space. Although the metal back cover can achieve the same effect by painting technology, the process is more difficult and the design type is limited.
Secondly, the metal back cover has great limitations because the metal back cover interferes with the cell phone signal, so the cell phone antenna must be exposed. This severely limits the designer's space, and if the phone is equipped with a metal back cover, the wireless charging function will also be abandoned. The flagship machine lacking this function will undoubtedly greatly reduce its own competitiveness. If it is to abandon new technologies and new functions in order to improve the texture of mobile phones, then the flagship machine will undoubtedly lose more.
Also, there is no prospect for future development. Because 5G network technology is coming, 5G mobile phones will also be popularized in the next one or two years, so many manufacturers have begun to prepare for new 5G mobile phones. Since the signal strength of the 5G network is much larger than that of the 4G, the requirement for the antenna of the 5G mobile phone is higher. In order to ensure the quality of the phone call, it is necessary to reduce the interference of the metal on the signal, leaving a large enough clearance area. It is also because of the above three reasons, so mobile phone products will choose glass in metal and glass materials.
T-shirts are also known as T-shirts. At first it was underwear, which was actually a lapel half-open collar, and later it developed into outerwear, including two series of T-shirt undershirts and T-shirt shirts. There are different opinions about the origin of the name of T-shirts. One theory is that dock workers who unloaded tea in Annapolis, Maryland, USA in the 17th century wore short-sleeved shirts. People abbreviated "Tea" (tea) as "T". , this kind of shirt is called T-Shirt, that is, T-shirt; the second is that in the 17th century, British sailors were ordered to add short sleeves to their vests to cover armpit hair and avoid unsightly; there is another saying that the sleeves It forms a "T" shape with the upper body, that is, its clothes have a T-shaped stitched collar, hence the name. In 1913, the U.S. Navy mandated that sailors should wear a crew-neck, short-sleeved white singlet under their overalls, one of the reasons for covering the thick chest hair of sailors. The raw materials used for T-shirts are very wide, generally cotton, linen, wool, silk, chemical fiber and their blended fabrics, especially pure cotton, linen or linen-cotton blended fabrics, which have the advantages of breathability, softness, comfort, coolness, sweat absorption, heat dissipation, etc. . T-shirts are often made of knitted fabrics, but due to the constantly changing needs of consumers, the design and production are also increasingly renovated. Therefore, T-shirts made of woven fabrics are also on the market one after another, becoming a new member of the T-shirt family.
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