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龜鱉目
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龜鱉目
guī biē mù
脊椎动物爬虫纲的一目。体被硬骨壳，由圆形的背甲及扁平的腹甲组成，颌缺齿，盖有角质鞘；方骨固定，肋骨及部分背椎连接于背甲，肛门为一长裂。
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Air Navigation and Tactical Control
Air Navigation and Traffic Control
air navigation astronomy
air navigation beacon
Air Navigation Bureau
air navigation chart
air navigation chart index
Air Navigation Commission
air navigation commissionanc
air navigation computer
Air Navigation Conference
Air Navigation Data Center
Air Navigation Development Board
Air Navigation Device
air navigation direction
air navigation directive
air navigation facility
Air Navigation Facility
air navigation information
air navigation installation
air navigation map
Air Navigation Multiple Indicator
Air Navigation Office
Air Navigation Officer
Air Navigation Order
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更新时间：2026/8/6 16:24:40