据不完全估计，2004年三门县由此造成的经济损失达1.5亿元左右。

According incompletely stat. 1.5 billion RMB economic lost during the accident in Sanmen county 2004.

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2004年秋以来，浙江省三门县发生了严重的青蟹疾病，死亡率高，造成了极大的经济损失。

Since Autumn 2004, several serious mud crab disease happened in Sanmen county, Zhejiang province, with a high mortality and large economic losses.

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本文主要对三门县基础地理信息系统的建设背景、设计原则、设计目标、系统框架、系统功能等进行了阐述。

In this paper, based on the Sanmen County Geographic Information system, design principles, design objectives, system framework, system functions are described.

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