The toxicity of organic pigment has become ecological concern.
有机颜料是否具有毒性已成为人们关注的一个焦点。
Concern over natural ecological environment and cultural landscape is an important research subject of landscape ecology.
对自然生态环境和人类文化景观双重属性的关注是景观生态学的重要研究课题。
Odorous compounds are of environmental concern because of their adverse effects on ecological environment and human health. They can cause health symptoms even in very small amounts.
恶臭污染物不仅对生态环境造成影响，而且严重危害着人体健康，恶臭污染已被列为七大环境公害之一。
In recent years, controversy on GMF's safety to human health and ecological environment or not is increasingly fierce, and the public has aroused great concern in the world.
近年来，有关转基因食品是否对人体健康和生态环境造成危害的争议日趋激烈，引起了世界公众的高度关注。
When some sea otter populations off the Alaskan coast started rapidly declining a few years ago, it caused much concern because sea otters play an important ecological role in the coastal ecosystem.
几年前，阿拉斯加海岸的海獭数量急剧减少。由于海獭对于维持海岸沿线生态平衡有非常重要的作用，所以其数量下降引起了广泛的关注。
The preservation of traditional residence in historic districts is an urban problem with wide concern and this article aims to provide some ecological preservation strategies for it.
历史街区民居建筑的保护是颇受关注的城市问题，本文研究的目的是对这一问题提供相关生态化的保护策略。
The preservation of traditional residence in historic districts is an urban problem with wide concern and this article aims to provide some ecological preservation strategies for it.
历史街区民居建筑的保护是颇受关注的城市问题，本文研究的目的是对这一问题提供相关生态化的保护策略。
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