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先秦
释义
先秦xiān-qín[be sent in advance Xian Qin] 历史时期,即从远古起到秦始皇统一全国止,史称为先秦时期。《汉书·河间献王传》:“献王所得书,皆古文先秦旧书”,注,“先秦,犹言秦先,谓未焚书之前”
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ground coat
ground coat enamel
ground coat paint
ground communication equipment
ground communication system
ground conductivity
ground conductor
ground conduit
ground connection
ground contact closure
ground control center
ground-controlled approach
ground-controlled interception
ground controlled radar
ground-controlled space system
ground control station
ground control system
ground counterpoise
ground cover
ground crew
ground current
ground data acquisition system
ground detector
ground die
ground dielectric constant
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更新时间:2026/8/24 18:56:17