Through the contact test of underground reference electrode, we have tested the natural potential, casing protecting potential, the anode working potential, and the anode open circuit potential.

根据地下参比电极接触测试原理，测试了套管被保护前后纵向深度上的套管自然电位、套管保护电位、阳极工作电位和阳极开路电位。

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Modifications of graphite materials for negative electrode of lithium ion batteries were reviewed. Natural graphite, artificial graphite and graphitic carbon fiber were discussed.

综述了用于锂离子电池负极的石墨材料的修饰与改性方法，所研究的石墨材料包括天然石墨、人造石墨和石墨化碳纤维。

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