Doubling hf-current results in a doubling of current density and a fourfold heat provided that the area of effective contact between the tissue ang the electrode remains constant.
如果人体组织和电极之间的有效接触面积保持不变，那么高频电流强度扩大一倍将会使电流密度增大一倍，并产生四倍的热量。
This results in a fourfold increase of heat Correspondingly, heat drops by 75% if current density is reduced by half, e. g. by doubling the effective electrode contact area.
相应地，如果将有效的电极接触面积加大一倍，电流密度将减少一半，热量则减少75%。
The 2-d finite element method was an effective method to calculate the potential and current density distribution of cathodic protection fields.
有限元法已被证明是计算阴极保护场中电位、电流密度分布的有效方法。
Using density current to eject sediment is one of the most effective methods for both prolonging reservoir working life and saving the limited water resource.
运用异重流对水库进行排沙是延长水库寿命并节约清水资源的行之有效的重要方法。
Using density current to eject sediment is one of the most effective methods for both prolonging reservoir working life and saving the limited water resource.
运用异重流对水库进行排沙是延长水库寿命并节约清水资源的行之有效的重要方法。
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