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全球卫星导航
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全球卫星导航
Encyclopedia
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卫星导航系统
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global satellite navigation
全球卫星导航
将导航卫星作为无线电信标,通过接收导航卫星发射的信号,测量载体与卫星之间的距离或多普勒频移,从而实时解算得到载体位置、速度和时间等导航参数的方法或过程。
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policy transfer
PoLi Kingdom
poling
poliomyelitis
poliomyelitis vacccine
Polio-Salk/Sabin vaccines
poliovirus
Polis
Polisario Front
polish
Polish Army Museum
Polish cinema
polished and mirror surface of fault
polished block
Polished Glutinous Rice
Polished Long-grained Nonglutinous Rice
polisher
Polish Film School Poland
Polish Flowers
Polish folk dance
Polish Government-in-exile
polishing
polishing block
polishing felt
Polishing Felts and Blankets
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