• 提取精制过程是先间歇份切取芴主份,采用冷却结晶法或溶剂结晶法精制芴主得到芴。

    The extraction and refining process includes distillating washing oil or anthracene oil to get fluorene distillate, then crystallizing the fluorene distillate to get fluorene using cooling or solvent.

    youdao

  • 包括低压加压精 、塔沸器、塔顶冷凝器辅助冷凝器;

    The system comprises a low pressure rectifying tower, a pressurizing rectifying tower, a tower kettle reboiler, an overhead condenser and an auxiliary condenser;

    youdao

  • 包括低压加压精 、塔沸器、塔顶冷凝器辅助冷凝器;

    The system comprises a low pressure rectifying tower, a pressurizing rectifying tower, a tower kettle reboiler, an overhead condenser and an auxiliary condenser;

    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