“Rudder Stock of a Ship of the Ming Dynasty”的概念、定义、翻译、参考文献-科学参考

单词	Rudder Stock of a Ship of the Ming Dynasty
释义	Rudder Stock of a Ship of the Ming Dynasty Encyclopedia 历史学中国古代科技文物释 Rudder Stock of a Ship of the Ming Dynasty明宝船舵杆 1957年江苏南京中保村明代宝船厂遗址出土的郑和宝船所用舵杆。
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