准确获得刮膜分子蒸馏器内流体的速度、温度及浓度分布具有十分重要的研究意义。
It is valuable to get the distribution of the velocity field, temperature field and concentration field that are formed in the process of molecular distillation.
因为煤的导热性低、蒸馏的速度慢，所以炼焦的过程较慢。
Because of the low thermal conductivity of coal and the slow rate of distillation, coking is a slow process.
因为煤的导热性低、蒸馏的速度慢，所以炼焦的过程较慢。
Because of the low thermal conductivity of coal and the slow rate of distillation, coking is a slow process.
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