V2EX off-gassing

Off-gassing

释义 Definition

(材料、化学品等)逸气/放气:指某种材料在制造、储存或使用过程中,逐渐释放出挥发性化学物质(气体或蒸气),常见于塑料、涂料、胶黏剂、新家具、建材等。也可泛指(非正式)“散发气味”。

发音 Pronunciation

/f s/

例句 Examples

New paint can cause off-gassing for several days.
新刷的油漆可能会逸气好几天。

To reduce off-gassing, the museum aired the display cases and chose low-VOC materials to protect delicate artworks.
为减少逸气,博物馆先给展柜通风,并选择低挥发性有机物(VOC)的材料来保护脆弱的艺术品。

词源 Etymology

由短语 off + gas 构成:gas 表示“气体”,而 off- 常有“脱离、释放出去”的含义(如 offload“卸下”)。off-gassing 因此字面即“把气体放出来”。该用法在材料科学、环境健康与制造业语境中较常见。

相关词 Related Words

文学作品 Literary Works

  • Michael Crichton, Prey(涉及材料与技术环境中的化学/气体释放等描写,出现相关术语语境)
  • Andy Weir, The Martian(含工程与材料/环境控制的技术语境中可见 outgassing/off-gassing 的使用)
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