“astronomical clocktower”的概念、定义、翻译、参考文献-科学参考

单词	astronomical clocktower
释义	astronomical clocktower Encyclopedia 历史学科学技术释 astronomical clocktower假天仪中国北宋苏颂受到浑仪小样的启发，提出制作思路，韩公廉推算设计，历时数年做成的天体演示仪器，即后来所谓天象仪的先祖。
随便看	Dumitru Radu Popescu dumka dummy dummy antenna dummy bar dummy combination dummy dee dummy index dummy instruction dummy observation dummy order dummy piston dummy pressure closed coring dummy run dummy scale dummy subscript dummy teaser dummy variable dUMP dump dump and heap bioleaching dump car dumped pulse dumper dumping

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