This unique book cover is stylish and offers optimal protection and comfort.

这种独特的书籍封面，是时髦，并提供最佳的维护和舒服。

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This unique book cover is not only stylish, but offers optimal protection and comfort.

这种独特的书籍封面不仅是时尚的，但是提供最佳的保护和舒适。

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The optimal design program for fire protection clothing based on ergonomics is put forward.

结合人体工效的相关因素阐述了防火服优化设计的方案。

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The optimal design program for fire protection clothing based on ergonomics is put forward.

结合人体工效的相关因素阐述了防火服优化设计的方案。

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