Practice shows that the improvement of environment in underground space is the key point for promoting the development of its utilization.

研究表明，人的心理和生理反映是随环境因素的改变而变化。实践表明，地下空间环境的改善，将是促进地下空间得以开发利用的关键。

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Nevertheless , to obtain the native mycorrhizal fungus species becomes the key to the recovering of plants and the improvement of environment with that technology.

大青山地区环境恶劣、植被破坏严重，利用菌根生物技术实现植被恢复是一个重要方向。

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Biomass has attracted high attention as renewable and clean energy. It not only could resolve energy sustainment, but also take a key role for the improvement of environment.

生物质作为一种可再生的洁净能源，已经受到人们的高度重视，它不仅解决了能源的可持续性，而且对环境的改善起到了重要的作用。

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Other plans include the improvement of the environment in south west Rhyl, securing the future of Rhyl College, introducing significant employment initiatives as well as providing better health facilities.

BBC: Regeneration plan for Rhyl

'promote international cooperation and to coordinate programmes in research, services and capacity building, in order to learn more about the nature and resources of the ocean and coastal areas and to apply that knowledge for the improvement of management, sustainable development and protection of the marine environment and the decision-making process of its Member States'.

UNESCO: Social and Human Sciences

At the same time, he said stocks were reacting to a better economic environment, and also spoke of the improvement in housing markets, with rising home prices helping many attain positive equity on their properties.

FORBES: Bernanke Admits His Childhood Home Is In Foreclosure And A Relative Is Unemployed