Coagulants have several solution forms in water, which effect on the coagulation processes with different manners, so their influence on streaming current is also different.
混凝剂具有多种溶液形态，每种形态对混凝过程的作用不同，因而对流动电流的影响也不同。
BACKGROUND: Radio frequency ablation (RFA) has widely utilized in the treatment for tumor with minimally invasion. However, the current RFA has disadvantages of little volume of coagulation.
背景：射频消融作为一种有前途的微创肿瘤治疗方法应用越来越广泛，但是现今的射频消融系统还普遍存在消融范围小的问题。
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