The metropolitan outskirt communities are micro social units in mixture of urban and suburban system, which are complicated in popularity composition and various in space form.

大城市近郊社区是城乡体制混合的微观社会组织单元，人口构成复杂，空间形态多样。

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This paper discusses the differences between black-white sketches and design ones in the following aspects as observation and composition, methods and steps, form of expression, and means and space.

本文通过素描的观察方法与构图安排、方法步骤、表现形式、手段和空间观念等五个方面阐述了明暗素描与设计素描的差异性。

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Their crystal form, composition, physical features and distribution in time and space make up one important line of information when carrying out site prediction of ore bodies.

其形态、成分、物性及时空分布规律的研究，是从矿物学角度进行中深脉状金矿矿体定位预测研究的最重要内容。

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