名词
中文翻译：国家大地网
同义词：
["national network of geodesy例句：1. The national geodetic net is used to measure the Earth's shape and size.（国家大地网用于测量地球的形状和大小。）2. The national geodetic net has been improved significantly since its establishment.（自从建立以来，国家大地网已经得到了显著的改进。）"]
例句：
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1. The national geodetic net is used to measure the Earth's shape and size.
国家大地网用于测量地球的形状和大小。
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2. The national geodetic net has been improved significantly since its establishment.
自从建立以来，国家大地网已经得到了显著的改进。
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3. The national geodetic net is essential for accurate mapping and navigation.
国家大地网对于准确的地图制作和导航至关重要。