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在平面内,一条直线切于一个固定的圆并沿着圆的外侧作纯滚动时,此直线上任一点的轨迹。
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involute
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infrared jammer
infrared jamming countermeasures
infrared laser
infrared laser chemistry
infrared laser semi-active combined guidance
infrared lens
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infrared line scanner
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infrared magnitude
infrared measuring distance
infrared microscope
infrared microscopy
infrared millimeter wave radar combined guidance
infrared modulation
infrared modulation technology
infrared monitoring
infrared multiphoton dissociation
infrared multiphoton dissociation (IRMPD)
infrared night-vision system
infrared non-destructive inspection
infrared object
infrared observatory
infrared occupational hazard
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