单词	eye
释义	eye The organ of sight (see illustration). They normally occur in pairs, are nearly spherical, and filled with fluid. Light is refracted by the cornea through the pupil in the iris and onto the lens, which focuses images onto the retina. These images are received by light-sensitive cells in the retina (see cone; rod), which transmit impulses to the brain via the optic nerve. Structure of the vertebrate eye
随便看	Pauli exclusion principle Pauli, Wolfgang Ernst PC pearlite pellet fusion Peltier effect pendulum Penrose, Sir Roger pentode penumbra percentile perfect gas perfect pitch perfect solution pericynthion perigee perihelion period period doubling periodic law periodic motion peripheral device periscope Permalloys permanent gas

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