Boris Johnson said Transport for London (TfL) will install more than 10, 000 LEDs, each of which is expected to cut energy use and carbon emissions by 60 per cent compared to existing bulbs.
鲍里斯·约翰逊(Boris Johnson)宣布伦敦交通局将安装超过1万盏LED灯，相比现在的灯泡，每个LED都将更节约能耗，并且可以减少60%的碳排放。
Boris Johnson said Transport for London (TfL) will install more than 10, 000 LEDs, each of which is expected to cut energy use and carbon emissions by 60 per cent compared to existing bulbs.
鲍里斯·约翰逊(Boris Johnson)宣布伦敦交通局将安装超过1万盏LED灯，相比现在的灯泡，每个LED都将更节约能耗，并且可以减少60%的碳排放。
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