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卫星无线电导航业务
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卫星无线电导航业务
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卫星无线电导航业务
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radio navigation satellite service; RNSS
卫星无线电导航业务
由用户接收卫星无线电导航信号,自主完成至少4颗卫星的距离测量,进行用户位置、速度及航行参数计算的业务。
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unalloyed plain steel
unalloyed quality steel
unalloyed section steel for construction
unalloyed special quality steel
unalloyed steel
unalloyed steel for boiler and pressure vessel
unalloyed steel for concrete reinforcement
unalloyed steel for covered electrode and welding wire
unalloyed steel for high performance building structure
unalloyed steel for railway wheels
unalloyed steels for engineering structures
unalloyed steels for railway axles
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unambiguous definition
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unambiguous grammar
unambiguous language
unambiguous solution
unanimity
unannealed
unannotated edition
unannounced satellite
unar
unarmed injury
unary
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