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单词 light valve
释义

light valve


noun Electricity.

a light-transmitting device having transmissions that vary in accordance with an electric input, as voltage, current, or an electron beam, used chiefly for recording sound on motion-picture film.

Origin of light valve

First recorded in 1925–30

Words nearby light valve

light therapy, lighttight, light trap, light treatment, light up, light valve, light verse, light water, lightweight, light welterweight, lightwood
Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020
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