Most volunteer vacations involve ecology friendly orhumanitarian activities.
大多数志愿者之旅会包含环境友好和人道关怀的活动。
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。
UV curing coating has been called environment -friendly coating because of its characteristics of ecology, high efficiency, economy for energy and suitable for industrial applications.
紫外光固化涂料是一种节能、低污染、高效率和适合连续化大生产的涂料品种，被誉为环境友好型涂料。
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