• 呼吸保护装置面罩罩式面罩口罩一起使用压缩空气导管呼吸装置要求试验标志

    Respiratory protective devices - Compressed air line breathing apparatus for use with a full face mask, half mask or a mouthpiece assembly - Requirements, testing, marking.

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  • 地下室的混凝土保护涂层覆盖电缆导管导管管道保持可见走廊更衣室都采用间接照明

    The concrete slab floor of the basement is covered with a protective coating, while cable guides, conduits and pipes remain visible, with corridors and changing rooms illuminated indirectly.

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  • 管制武器保护正面旨在单元一个硬盘影响导管然后进一步保护试点

    The control arms protect from the front and are designed to snap off in a hard impact, the ducts then further protect the pilot.

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  • 输放装置包括导管控制器管、导管、保护机构至少根锁定至少根支架线

    The implanting device comprises canal head, inner pipe, close end controller, middle pipe, wire pipe, outer protection mechanism, at least one locking wire and at lest one bracket pulling wire.

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  • 介绍近几年出现一种新型的CO_2气体保护焊接方法——表面张力过渡导管建造中的应用情况。

    The application of a new welding process shield by CO2 - STT (surface tension transfer) is introduced in construction of jacket.

    youdao

  • 介绍近几年出现一种新型的CO_2气体保护焊接方法——表面张力过渡导管建造中的应用情况。

    The application of a new welding process shield by CO2 - STT (surface tension transfer) is introduced in construction of jacket.

    youdao

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