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coal sample
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coal sample
Encyclopedia
理学
煤炭地质勘查
释
coal sample
煤层煤样
在生产矿井、小窑或勘探巷道中,由煤层顶部到底部按一定规则采取的煤样品。
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polysialic acid
polysialic acid (PSA)
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polysilicon thin film transistor
polysiloxane
polysiloxane-based thermoplastic elastomer
polysleeve
polyslip
polysome
polysomic inheritance
polyspast
polyspectra
polyspectrum
polyspermy
polyspherical coordinate
polysphygmograph
polyspory
polystele
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polystomy
polystyrene
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