At present, the main research objects on seasonal variations are quantitative data, seldom concerning qualitative data.

目前季节变动的研究对象主要是定量数据, 对定性数据则很少涉及.

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At present, the research objects of most hazard assessment are single hazard resource and process.

目前, 绝大多数危险性评价所研究的对象是单一的危险源或危险过程.

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As one of the mainly research objects cadastre management, the house has the obvious geometry features.

房屋作为地籍管理中最主要的研究对象之一, 具有明显的几何特征.

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The research objects of mineral sciences are both natural and synthetic crystalline materials.

它的研究对象是天然矿物和人工晶体材料.

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