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radio frequency navigation
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radio frequency navigation
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无线电频率导航
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radio frequency navigation
无线电频率导航
根据无线电波的信号频率与导航(几何)参数的对应关系,通过频率测量完成导航参数确定或实现定位功能的无线电导航技术或手段。对应的系统(或设备)称为频率式无线电导航系统(或设备)。
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Quality Inspection Center of Forest Chemical Products, Bureau of Forestry (Nanjing)
quality inspection of prefabricated components
quality inspection plan
quality intersection analysis
quality in the cross section
quality in use
quality level
quality loss function
quality management
quality management engineering
quality management for mineral processing
quality management for pharmaceutical analysis
quality management information system
quality management of identification of forensic medicine
quality management of mineral processing plant
quality management of publication printing
quality management of urban rail transit construction
quality management (QM)
quality management standard
quality management system
quality management system audit
quality metrics
quality model
quality of aerophotography
quality of a lot of product
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