防毒面具——更多情况下称之为呼吸器——也是工业日常安全非常重要的装备。
Gas masks — more generically known as respirators — are also an important part of industrial safety on a daily basis.
防毒面具——更多情况下称之为呼吸器——也是工业日常安全非常重要的装备。
Gas masks — more generically known as respirators — are also an important part of industrial safety on a daily basis.
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