The contact flocculation with the active sand as carrier was applied to clarify the eutrophication lake water.
本文介绍以活性砂为载体的接触絮凝法应用于富营养化湖水澄清处理的研究成果。
Therefor, it is greatly significant to clarify the mechanism of sand blowing process so as to control the production of sand core.
由于砂芯通常采用射芯的方法来制造,因此,了解射砂过程的机理,并且在此基础上对射砂过程加以控制,就显得至关重要。
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