• 本文叙述中国人使用矿产品先后次序采矿峒、采矿方法充填工艺起源矿藏一词的由来。

    The paper describes the sequence of mineral products used by the Chinese, mining pit and chamber, mining method and the source of the term "mineral resources".

    youdao

  • 本文叙述中国人使用矿产品先后次序采矿峒、采矿方法充填工艺起源矿藏一词的由来。

    The paper describes the sequence of mineral products used by the Chinese, mining pit and chamber, mining method and the source of the term "mineral resources".

    youdao

$firstVoiceSent
- 来自原声例句
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定