... step drill 阶梯钻头 step hardening 分级淬火 step motor 步进马达 ...
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Step stress test hardening 步进压力老化测试
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You may also wish to take some of the other hardening steps indicated in this article, although ensuring that the administrative infrastructure is secure is by far the most important step.
您还可能希望利用本文中提到的其他加强步骤，不过确保管理基础设施的安全是最为重要的步骤。
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