• 铸钢采用石灰石砂代替石英砂一种有效消除清砂矽肺的措施。

    It is an effective way of eliminating the occurrence of silicosis in fettling workers by substituting silica with limestone as molding material in steel casting factory.

    youdao

  • 铸钢采用石灰石砂代替石英砂一种有效消除清砂矽肺的措施。

    It is an effective way of eliminating the occurrence of silicosis in fettling workers by substituting silica with limestone as molding material in steel casting factory.

    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