Then the preparation of magnetic immobilized beds was investigated theoretically and experimentally, such as the force balance, the control of packing length and the allowable velocity of flow.

对磁性固定柱的制备条件，如受力平衡分析、柱长度的控制、最大耐受流速等进行了理论分析和实验模拟；

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Then the preparation of magnetic immobilized beds was investigated theoretically and experimentally, such as the force balance, the control of packing length and the allowable velocity of flow.

对磁性固定柱的制备条件，如受力平衡分析、柱长度的控制、最大耐受流速等进行了理论分析和实验模拟；

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