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holostei (fossil)
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holostei (fossil)
Encyclopedia
理学
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holostei (fossil)
全骨鱼类(化石)
进化阶段和特征组合上介于软骨硬鳞类和真骨鱼类之间的辐鳍鱼类。以现生于美洲淡水中的雀鳝(Lepisosteus)和弓鳍鱼(Amia)为代表。
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point-line configuration
point-line distance
point load
point load experiment of rock
point manipulation
point mapping
point mass
point mass, particle
point maximum
point measure
point metering mode
point mutation
point observation
point of accumulation
point of adherence
point of alternation
point of application of a vector
point of approximate continuity
point of approximate discontinuity
point of attraction
point-of-care testing
point of cessation
point of closure
point of condensation
point of congruence
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