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日本科学家们最近用三氧化钨代替液晶来做电致显色指示器,用于手表生产。其工作原理是:当电流以某个方向通过三氧化钨时,它就呈兰色;方向相反吋,兰色就消
Japanese scientists have recently used tungsten oxide instead of liquid crystal to do electrochromic indicator for watch production. Its working principle is: when the current through a certain direction of tungsten trioxide, it is blue; the opposite direction, blue to eliminate