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Terms for subject Aviation containing 无 视 | all forms
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无云视线cloud free line of sight
无人操纵监视仪器设备unmanned surveillance equipment
无人空中监视系统unattended aerial surveillance system
无源红外夜视仪passive infrared night equipment
无源飞机监视系统passive aircraft surveillance system
目视无损测试visual nondestructive testing
联合无人机监视与目标截获系统joint unmanned surveillance target acquisition system
视听式无线电信标visual/aural range
视听式无线电航向信标visual aural radio range
〔客〕视听式无线电航向信标visual aural radio range
视线无阻挡clear line of sight