Sunglasses can prevent ultraviolet rays from sunlight. Ultraviolet rays can damage the cornea and retina, and sunglasses can completely eliminate ultraviolet radiation. Sunglasses can prevent strong light. Light reflected from the sun will damage the retina. High quality sunglasses can filter up to 97% of the eye rays to avoid injury. Sunglasses can prevent glare. It can reflect large amounts of light, and the bright spots that it produces will disturb the line of sight or hide objects. Sunglasses can completely eliminate such glare with polarizing technology. There is also the role of beauty decoration. Sunglasses are an indispensable decoration for fashion. Sun Glasses,Colorful Sun Glasses,Reflective Sun Glasses,Unisex Sun Glasses China Guangdong Shenzhen city Omelle glasses Co., Ltd. , https://www.omelleoptical.com
The compulsory one in the Chinese version of the first chapter, the third chapter, "The Movement of the Earth" (the third class hour) ppt scenario is introduced. At present, the construction of Kunming City is developing in the direction of "high starting point, high standard and high grade". . The Kunming City Planning Bureau formulated this regulation in accordance with the “low density and high green space rate†approval principle to control the distance between high-rise buildings and sunshine. The current "Technical Regulations for Urban Planning and Management of Kunming City" requires that the residential winter solstice full window sunlight is valid for no less than one consecutive hour; kindergartens, hospital wards, etc. require that the winter solstice full window sunlight be valid for no less than 3 hours. The newly-promulgated "Interim Regulations" adopt a cumulative time period of not less than 60 minutes for continuous sunshine, which makes sunshine analysis more scientific and reasonable. [Thinking] In the real estate development, in order to ensure the residents' right to light, what is the difference between the building spacing in different latitudes? [Point dial] The lowest floor of the back building can be exposed to sunlight at noon when the height angle of the noon sun is the smallest. According to this requirement, the higher the latitude, the greater the distance between rooms.