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  1. ventilation system

    • ph.
      通風系統
  2. 知識+

    • 急~ 麻煩高手幫忙翻譯一下短期刊 20點!

      ...reaction rates), the ventilation rates, and the filtration (when a mechanical ventilation system is used). The effect of the hydrocarbon chemistry was not significant...

    • 看不懂的英文句子

      ...exposure to others, closer in. And it's not clear how good the ventilation system on that bus was. All of those bus passengers, he says...

    • canary in the coal mine..

      ... - short but meaningful. Early coal mines did not feature ventilation systems, so miners would routinely bring a caged canary into new coal seams...