Considering the features of the construction of this line specific requirements are specified in the filling such as filling with fine earth, coarse mountain surface soil and graded crushed stones.
结合秦沈线施工特点，具体指出路基采用细粒土、粗粒山皮土和级配碎石几种具有代表性填料进行填筑的技术要求。
The density, mass, and size compare favorably to that of Earth. But, the atmosphere and surface features differ markedly.
它密度、质量和大小都和地球差不多，但大气和表面却截然不同。
The mission of geomorphological environment research is to explore the most basic environment and features of our earth surface morphology.
地貌环境是人类一切生活最基本的场所和物质基础。
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