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来源:雅诚德英语网
Changing building codes, evolving tastes, and the high cost of maintaining those wonderful old signs have businesses embracing LEDs, which are energy efficient but still carry great cost.
不断变化的建筑规范,逐渐发展的品味,以及维护这些美妙的旧标识的高昂成本,让企业欣然接受了发光二极管,它们节约能源但成本仍然很高。