台时效率
对于同一系统, 资源效率越高,环境效率就越低( ) For the same system, the higher the resource efficiency, the lower will be the environmental efficiency( )
其它条件相同时,提高物质循环率,有利于节资降污( ) Under the same other conditions, an increase of material recycling rate is beneficial to saving resource and reducing pollution( )
物质在人类社会经济系统中的流动是自然过程( ) Material flows in human social and economic systems are natural processes( )
提高物质循环率,有利于节约资源,但不能减少废物( )Increasing material recycling rate helps to save resources, but can't reduce environmental emissions( )
提高物质循环率,有利于节约资源,但不能减少废物( ) An increase of material recycling rate can save resource but not reduce environmental emission( )
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