The surface characteristic of the raceway of bearing after electrochemical mechanical machining(ECMM) is measured and analyzed.

研究了电化学机械加工轴承滚道的表面特性，并同传统超精加工进行了系统的分析比较。

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The exchange-coupling magnetostrictive multilayers (ECMM) have attracted much attention because of its high low-field magnetostrictive sensitivity.

磁致伸缩交换耦合多层膜由于具有优异的低场磁致伸缩性能，受到人们的广泛关注。

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