Drivers who run in the Sichuan-Chongqing region know that because of the mountainous areas, all kinds of slopes are common, and the stability of the engine is extremely high. Cummins engines have gained more and more in these two regions. Individual and corporate users, of which China Railway
Optical fiber is a shorthand for optical fiber. It is a fiber made of glass or plastic and can be used as a light-conducting tool. The transmission principle is 'total reflection of light'. The number of fiber cores is related to the device interface of the fiber optic connection and the s
The BMW Expo in Munich, Germany, is scheduled to take place from April 8 to 14, 2019, when Perkins will present its full range of Euro V engines , as well as a number of future technologies, aftermarket products and digital solutions. The central theme of the stand will reflect Perkins' c
Recently, Associate Professor Jin Liang of the School of Physics and Science of Nankai University cooperated with Professor Song Zhi to design a wave propagation independent of the incident direction and unidirectional laser emission using the unique asymmetry exhibited by one-way destructive inte
It is understood that the Bohai Sea smoky high-speed rail project will start construction in December this year, and strive to be completed and opened to traffic in 2021. In the future, it will take more than three hours to go to Yantai in Beijing. In addition, Shandong Traffic has these big moves.
With the advancement of LED display technology, the dot pitch is getting smaller and smaller. According to industry knowledge, the Maipu brilliance LED display with a dot pitch of less than 2.5 mm is a small-pitch LED display. The small-pitch wall-mounted LED display is a well-developed product,
The biotechnology industry and the food industry have become one of the supporting industries in China. As the bio-fermentation industry is widely used in biotechnology, biomedicine, food, beer, beverage, bio-feed and other industries, it will usher in the market's needs and opportunities. Ho