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1·Aluminum has promising development prospects because of its high electrochemical equivalent, negative electrode potential, environmentally friendly and low price.

它电化学当量高，电极电位负，对环境友好，价格低廉，具有广阔的发展前景。

2·Electrochemical impedance spectra (EIS) of a metal hydride electrode were interpreted by means of an equivalent circuit.

通过试验测得金属氢化物电极的电化学交流阻抗谱(EIS)，经过分析得到该电极的等效电路图。

3·In the third chapter Porous silicon was prepared by pulsed and dc electrochemical etching methods under the equivalent etching condition.

第三章研究了用脉冲电化学腐蚀制备均匀发光多孔硅。

4·The change principles of the electrochemical impedance versus temperature were analyzed by simulating the experimental data using appropriate equivalent circuit.

选择合适的等效电路对阻抗谱进行模拟，并分析了其随温度的变化规律。