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precise code
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precise code; P-code
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全球定位系统卫星用于发播精密测距的伪随机噪声码。是测距码的一种,用于测定从卫星到接收机之间距离的二进制码。
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National Song
National Sorry Day
National Southwest Union University
national sovereignty
National Soviet Congress
Nationalsozialistische Deutsche Arbeiterpartei
National Spacecraft Industry Measurement and Testing Center
national space law
National Space Science Center
National Space Science Data Center
national spatial data infrastructure
National special Olympic Games
National Specimen Information Infrastructure
national sports
National Stadium
National Stadium of Singapore
national standard
national standard for food irradiation
National Standard for Physical Exercises
national standard material
National Standard of Physical Fitness and Health for Students
National Standards & Best Practices for U.S. Museums
National Standards for United States History
national standards for work safety and health
National Standards of Printing
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