As the Spring Festival approaches, it brings with it one of the most significant annual events in China. This traditional holiday is marked by a massive population movement across the country, from south to north and east to west. According to past data, during the 40-day period of the Spring Festiv
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The Spring Festival is fast approaching, bringing with it the traditional celebration that unites millions of people across China. This holiday is more than just a time for family reunions—it’s a massive nationwide migration, with people traveling from south to north, east to west, cre
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Electric light sources can generally be categorized into two main types: illumination sources and radiation sources. Illumination sources are designed primarily for lighting purposes, emitting visible light in the wavelength range of 380 to 780 nm, which is suitable for human vision. These sources v
With the rapid advancement of industrial technology, the demand for valves has become more stringent, especially for butterfly valves used in cryogenic environments. These valves must not only meet general performance standards but also ensure reliable sealing at low temperatures, smooth operation,
With the rapid advancement of industrial technology, the valve industry is facing increasingly strict requirements, especially for butterfly valves used in cryogenic environments. These valves must not only meet general performance standards but also ensure reliable sealing at low temperatures, mai
Electric light sources are generally categorized into two main types: illumination sources and radiation sources. Illumination sources are designed primarily for lighting purposes, emitting visible light within the wavelength range of 380 to 780 nm, which is suitable for human vision. These sources
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