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Kaili fauna
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Kaili fauna
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理学
古生物学
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Kaili fauna
凯里动物群
发现于中国贵州东南部凯里一带,距今约5.2亿年的海洋动物群。以大量特异保存的节肢动物、水母状动物、棘皮动物和软躯体动物化石为特色,特别是保存精美的纳罗虫、微网虫、奇虾、古蝠虫、奥托也虫等。
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beam bridge for pipeline
beam broadening
beam chemistry
beam column
beam combiner
beam combining fiber laser
beam convergence
beam cooling
beam crane
beam current
beam current; beam intensity
beam current convective instability
beam diameter
beam diaphragm
beam dilution
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beam divergence angle
beam dyeing
beamed radiation
beam efficiency
beam emittance
beam energy
beam equation
beam expander
beamflying-spot scanning
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