• In this paper, the method, step and requirement to determine gold and silver content of gold-bearing quartz by fire assay are described.

    本文说明法测定金块矿中金方法步骤

    youdao

  • In this paper, the method, step and requirement to determine gold and silver content of gold-bearing quartz by fire assay are described.

    本文说明法测定金块矿中金方法步骤

    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