The area data of image classification was fairly close to those of second class investigation in each town.
各镇（林场）地类、林分面积与二类调查数据比较接近。
Area data relate to harvested area.
面积数据是指收获面积。
Area data of each land utilization type of Haikou County is analyzed.
对海口市各土地利用类型的面积进行统计分析。
Area data is one of familiar geography data, and it has highly extensive application.
面状数据是最常见的地学数据之一，其应用十分广泛。
The second part: Introduction of the study area, data sources and research methods.
第二部分：介绍本文的研究区域、数据来源及研究方法。
Data mining (DM) is a new hot research point in database area. Data mining gets knowledge from large quantity of data.
数据挖掘是近年来数据库领域中出现的一个新兴研究热点，它是从大量数据中获取知识。
Surface condition is very complex in western area, data quality is bad, most western data is low signal to noise ratio seismic data.
西部地区地表情况复杂多样，资料品质较差，多属低信噪比资料。
Surface condition is very complex in western area, data quality is bad, most western data is low signal to noise ratio seismic data.
西部地区地表情况复杂多样，资料品质较差，多属低信噪比资料。
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