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单词 optical communication
释义 optical communication
[`äp·tǝ·kǝl kǝ´myü·nǝ`kā·shǝn]
COMMUNICATIONS
The use of electromagnetic waves in the region of the spectrum near visible light for the transmission of signals representing speech, pictures, data pulses, or other information, usually in the form of a laser beam modulated by the information signal.
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