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岁月的风尘往往会抹去人类的种种努力,但当人们在埃及金字塔内看到一段铜水管道虽经历了五千年的时光流转,仍能淌出潺潺清流,不禁会暗暗欣慰,大自然给人类留下了历经久远的物质——铜。 铜是一种质地坚硬的金属,耐腐蚀,能在各种不同环境中不受损坏。铜在化学活性排序的序位很低,仅高于银、铂、金,因而性能极稳定。铜在大气中还会生成氧化铜膜,防止铜进一步氧化腐蚀。所以当许多同时期的
Years of dust and dust often eradicate all human endeavors. However, when people see a section of copper pipe in the Egyptian pyramid, which has flowed through 5,000 years, it can still drip out of the stream and can not help but feel secretly pleased that nature will give Humanity has left a long-lasting material - copper. Copper is a hard metal that is corrosion resistant and can be undamaged in a variety of environments. Copper in the order of chemical activity is very low, only higher than silver, platinum, gold, and thus extremely stable performance. Copper in the atmosphere will generate copper oxide film, to prevent further oxidation of copper corrosion. So while many contemporaneous