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单词 motion detector
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motion detector
motion detector n. (a) a motion sensor; (b) Biology a cell or organ that is sensitive to movement.
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1968 Brit. Patent 1,120,3000 1/1 Motion detector for indicating when the velocity of a continuous body, such as a wire or belt, exceeds a certain minimum.
1968 Science 18 Oct. 377/1 These motion detectors [sc. neurons in the visual system of the monkey] have preferred directions.
1971 Science 22 Oct. 416/3 In unidirectional motion detectors such as the semicircular canals, the kinocilia of the receptor cells on a crista are all aligned in the same direction.
1977 U.S. News & World Rep. (Nexis) 8 Aug. 66 A high school in a troubled area of Brooklyn, N.Y., is rigged with electronically monitored motion detectors which can be set off by the slightest vibration after the school is closed for the day.
1994 Nature 30 June 712/1 To see whether such an anisotropic distribution of motion detectors could be related to the differences observed in human psychophysics, we introduced a similar anisotropy in a proposed network model of heading detection.
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