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农村空巢老人
释义
农村空巢老人
Encyclopedia
管理学
农村常住人口
释
rural empty nesters
农村空巢老人
无子女或有子女但常年不与子女生活在一起,独自居住或与老伴一起居住在农村的60周岁及以上的老年人。
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optical character reader
optical character reader, OCR
optical character reader,OCR
optical character recognition
optical Chinese character recognition
optical chip
optical chromatography
optical circuit switching,OCS
optical circulator
optical clock
optical coating
optical coatings
optical code division switching,OCDS
optical coherence tomography
optical coherence tomography, OCT
optical coherent communication system
optical coherent transient effect
optical collimator
optical communication
optical compensation
optical compensation type length measuring machine
optical compensation zoom lens
optical component
optical component tester
optical computer
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