Take materials scientist Ting Xu. She’s using nanotechnology to craft solar cells that are more energy-efficient and eco-friendly than oil or coal.
以材料科学家徐婷为例，她正在用纳米技术制造太阳能电池，这是比石油和煤炭热能更高更环保的能源。
In some cases, the amount of energy being used to power a hand dryer is less eco-friendly than using a few sheets of paper towels.
在某些情况下，大量的精力被用于电力手干燥机是少比用几张环保纸毛巾。
The circular economy is an economic activity guided by the laws of industrial ecology, which is a new eco-friendly pattern based on the material - and energy-recycles.
循环经济是运用工业生态学规律指导的经济活动，是建立在物质、能量不断循环使用基础上与环境友好的新型范式。
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