本文是围绕水蒸气蒸馏连续法生产松香和松节油过程中实现对蒸馏塔的控制问题而展开的。

This thesis is developed on an existing problem for the control of distill column in the process of rosin and turpentine production by continuous vapor distillation.

youdao

本文是围绕水蒸气蒸馏连续法生产松香和松节油过程中实现对蒸馏塔的控制问题而展开的。

This thesis is developed on an existing problem for the control of distill column in the process of rosin and turpentine production by continuous vapor distillation.

youdao