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迷齿类
释义
迷齿类
Encyclopedia
理学
两栖纲(化石)
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labyrinthodonts
迷齿类
“古代”两栖动物的一类。因牙齿具有迷路构造而得名。头骨一般盖有骨甲,故又称坚头类。曾称弓椎类。
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unsharp quantum logic
unshelled eggs
unshielded twisted pair
unshielded twisted pair, UTP
unsigned number
unsmeltable
unsmooth discharge
unsolicited distribution
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unsolvability theorem
unsolvable
unsolvable algorithmic problem
unsolvable associative calculus
unsolvable decidability problem
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