A surge in LED lighting, cleaner car engines and smarter fridges round the world has helped create an energy saving market worth at least $310bn a year, new figures suggest.
新数据显示,LED照明、清洁汽车发动机以及智能冰箱在manbetx app苹果 的大幅增加,帮助缔造了一个每年规模至少为3100亿美元的节能市场。
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