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free from contamination
[friː frəm kənˌtæmɪˈneɪʃn]

  • 无污染的:指某物质或环境没有被有害物质污染,保持纯净和清洁的状态。

专业释义

  • 无污染
  • 无污染

·2,447,543篇论文数据,部分数据来源于NoteExpress

双语例句

  • The presence of exogenous surface contamination, including dirt, grease, free iron from contact with steel tooling, and so forth, may interfere with the formation of the passive film.

    外生表面污染,包括:尘土油脂来自钢铁加工游离等等可以影响到钝化生成

    youdao

  • The unique advantages are: no contamination, high efficiency, free from power, less weight, easy for cleaning and maintenance and wide range of application.

    具有脱落污染、效率不需电能消耗、重量容易清洗便于维修、应用范围广泛等特点。

    youdao

  • The invention relates to many articles, particularly those public use materials for easy contamination, free from scribbling, without prevention of the sticky paper.

    现有的很多物体,尤其是公共使用的物体,表面粘污涂画、不防粘贴 纸张

    youdao

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