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history of navigation technology
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车船、航天航空器、武器装备、人员等定位、规划航向或路线,以顺利到达目的地的设备、方法和技术的发展历史。
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primary slime
primary socialization
primary solution
primary somatomotor area
primary somatosensory area
primary somatosensory cortex
primary source
primary spectrum
primary spectrum, first-order spectrum
primary spermatocyte
primary stage of socialism
primary standard
primary standard dosimeter
primary standard for airborne sound pressure
primary standard for OCTG threads
primary standard for sound pressure in water
primary standard for ultrasound power
primary standard light source
primary standard machine of shore hardness
primary standard machine of vickers hardness
primary standard material
primary standard of absorbed dose to water
primary standard of air kerma
primary standard of angle metrology
primary standard of diffuse transmitted visual
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