A high quality video about automatic laser marking machine for high temp...

评论

发表评论

此博客中的热门博文

History of the World Shipbuilding Industry

图片
 Archaeological evidence suggests that humans arrived in Borneo at least 120,000 years ago, probably from China in maritime Asia, during a continental ice age when seas and islands were shorter (see History of Borneo and Papua New Guinea for distances ). 50,000 years ago, the ancestors of Australian aborigines and New Guinea traveled to both sides of Sahul in the Lombok Strait by boat. As early as 3000 BC, the early Egyptians knew how to assemble planks of wood into the hull of a ship. The early Egyptians also knew how to assemble treenails tied together with planks, using caulked seam spacing. "Khufu's Ship", a 43.6-meter vessel entering the foundation pit at the foot of the Sealed Pyramids of Giza in the Great Pyramid of Giza, 4th Dynasty, around 2500 BC, is a full-scale surviving example, probably Has fulfilled the function of symbolizing a solar barque. The early Egyptians also knew how to tie mortise and tenon joints together with the planks of their ships. The oldes...
阅读全文

Thermal Power Plant

图片
 A thermal power plant refers to a thermal power plant that uses steam extraction or exhaust steam from a steam turbine to provide heat to users while generating electricity. The main working principle is to use the hot water after the thermal power plant generates electricity, and heat it after reheating. Since thermal power plants both generate electricity and heat, the boiler capacity is larger than that of thermal power plants of the same scale. Thermal power plants must have more boiler capacity than general thermal power plants for backup, and the water treatment capacity is also large. A thermal power plant must be close to the heat load center, and is often the center of a town in a densely populated area. Its water use, land acquisition, demolition, and environmental protection requirements are much higher than those of a thermal power plant with the same capacity. At the same time, a heat pipe network is also built. Thermal power plant operating characteristics The operat...
阅读全文