Dangerous materials are harmful to people's health and the environment.

危险材料对人体健康和环境有害。

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It is after all a simple ball and socket joint; it has certain loads imposed on it; it needs reliability over a defined life; it must contain materials suitable for the working environment.

它毕竟是一个简单的球窝关节；它有一定的载荷；它在有限的生命中需要可靠性；它必须包含适合工作环境的材料。

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This environment encouraged a free interchange of ideas, which led to more creativity with form, function, colour and materials that revolutionised attitudes to furniture design.

这种环境鼓励了思想的自由交流，从而在形式、功能、颜色和材料方面产生了更多的创意，彻底改变了人们对家具设计的态度。

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Ships no longer in use contain dangerous materials which can be released into the environment when they are taken apart.

VOA: special.2009.04.27

So, these are all involved with our ability to maintain homeostasis by exchanging materials with the external environment.

这个过程关乎人体维持内稳态的能力,内稳态通过与外环境进行物质交换来实现

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In turn, the process has a positive impact on the environment by using fewer materials.

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But Correa stressed that the knowledge of how to work with the environment, climate and materials had long been available - but modern architects had "forgotten and forsaken" it.

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Her work will focus on studying the fate of toxic and radioactive materials in the environment.

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