Based on the study of the microscopic flow mechanism of liquid in packed column, a zone-stooge model is proposed, by which the efficiency of the column is simulated in the non-ideal flow state.
本文探讨了填料塔中液体微观流动机理，提出了多区多级模型，对填料塔在非理想流动状况下的塔效率进行了模拟。
Picnics and packed school lunches may never be the same again, thanks to the latest breakthrough by military science -- the non-soggy sandwich.
你能想象吗？从此以后，我们平时野餐带去的食物和学校的盒饭将会大变样噢！因为最近美国的军事科学又取得了一项成果，发明了“防水三明治”。
Picnics and packed school lunches may never be the same again, thanks to the latest breakthrough by military science -- the non-soggy sandwich.
你能想象吗？从此以后，我们平时野餐带去的食物和学校的盒饭将会大变样噢！因为最近美国的军事科学又取得了一项成果，发明了“防水三明治”。
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