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正音书院
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正音书院
Encyclopedia
文学
《语言活力与语言濒危》(联合国教科文组织)
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Zhengyin Shuyuan (College of Correct Pronunciation)
正音书院
清雍正(1723~1735)年间在福建、广东两省设立的北京语音训练班。这是中国最早的北京语音训练班。
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optical access network
optical active polymer
optical active substance
optical activity
optical activity, optical rotation
optical add drop multiplexer
optical add-drop multiplexer
optical add/drop multiplexer
optical alignment
optical alignment technology
[optical] all-pass filter
optical all-pass filter
optical amplification
optical amplifier
optical analogue computer
optical and electromagnetic transmission characteristic
optical and near-infrared solar eruption tracer
optical antimer
optical antipode
optical aperture synthesis imaging
optical aperture-synthesis imaging
optical aperture-synthesis imaging technique
optical appearance
opticalaptasensor
optical arm
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