目的介绍辅助人工髋关节及其设计原则。

Objective To introduce the assistant artificial hip Joint (AAHJ) and its principle of design.

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最后，提出了在高中物理教学中使用计算机进行辅助教学的原则。

Finally, it mentions some principles on how to use multi-media technology in physics teaching.

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另外，也运用到80／20原则和存货管理流程再造观点予以辅助。

Moreover, also use the 80/20 laws and the re-engineering view of inventory management process.

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另外，也运用到80／20原则和存货管理流程再造观点予以辅助。

Moreover, also use the 80/20 laws and the re-engineering view of inventory management process.

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