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shared innovation
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shared innovation
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shared innovation
共同创新
原始语中的语音、形态、句法、语义等语言特征在某些后代语中发生了共同变化。由K.布鲁格曼和B.德尔布吕克(Berthold Delbrück,德国,1842~1922)在讨论谱系树问题时提出(德尔布吕克优先发表),是唯一被普遍接受的语言分群(subgrouping)标准。
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river loaches
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river management
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river meander restoration
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river morphology
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river network
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river regime chart
river regulation or channel improvement
river regulation planning
river regulation structure
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