如果已为栅格数据集创建了金字塔，辅助文件中也将存储一个金字塔文件（RRD 或 OVR）的指针。如果在构建金字塔后使用操作系统从栅格目录中移动该栅格，此软件将在指针指示的位置中查找金字塔文件。
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考古学家利用美国宇航局卫星图像技术在埃及发现了17座被掩埋的金字塔，据BBC周一广播文件报道。
Archaeologists have uncovered as many as 17 buried pyramids in Egypt with the help of NASA satellite imagery, according to a documentary to be aired by the BBC on Monday.
同时，美国农业部发布了包括食物指导金字塔在内的文件，鼓励人们每天至少吃三道蔬菜和两份水果。
Meanwhile, the United States Department of Agriculture has released a document containing the food guide pyramid which encourages a minimun of 3 vegetables and 2 fruit servings per day.
同时美国农业部发布了一个文件含有食物指南金字塔鼓励最少3蔬菜和2水果料理每天。
Meanwhile the United States Department of Agriculture has released a document containing the food guide pyramid which encourages a minimum of 3 vegetables and 2 fruit servings per day.
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