Conclusion The free field hearing threshold at language frequencies in the patients implanted with multi-channel cochlea could satisfy the need for daily conversation.

结论多通道人工耳蜗植入患者语言频率声场听阈值达到了日常交谈的水平；

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For double channel implantations with different depths, different contributions of the implanted impurities during oxide diffusion to the surface concentrations are studied in the paper.

分别考虑了深浅两次沟道区注入杂质在氧化扩散过程中对表面浓度的贡献。

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