I think that when one material can bring more than one style, it's eco-friendly.

我觉得当一种材料可以用作多种形式时，它就是环保的。

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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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Substrate, which is the most important material in eco-engineering for rock slope protection(EERSP), is the substance basis for stable growth of vegetation.

基质混合物是岩石边坡植被护坡工程植被稳定生长的物质基础，在有限的物质条件下，其功能实现决定于功能材料的效应发挥。

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The fact that wood is the most eco-friendly building material is an obvious reason for its use, but as Kantonen explains its aesthetic qualities are being rediscovered and appreciated again.

CNN: Spectacular forms in wood

Beyond this eco-friendly element, Radiator Labs is integrating a phase change material into its product that can store energy and heat an apartment for up to four hours without assistance from the boiler.

ENGADGET