Others study the impact of human activity on Earth's environment and design methods to protect the planet.
另一些地球学家则研究人类活动对地球环境的影响，并制订出保护地球的措施。
Pilot study on the design and planning of the City East entrance landscape in Zhangzhou is to further clarify the concept, principles and methods of application.
通过对漳州市城市东入口的景观规划设计的试验性研究，来进一步说明这些理念、原则与方法的运用。
Further research on the mechanism principle, methods of groundnut shelling, mechanical performance analysis and new model groundnuts sheller design will be helped by this study.
该研究对进一步研究花生脱壳机理、脱壳方法、脱壳力学特性分析，设计新型花生脱壳机有重要意义。
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