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汉语拼音：kǒu zhào

卫生用品，用纱布等制成，罩在嘴和鼻子上，防止灰尘和病菌侵入。

1. 卫生用品。用纱布等制成，罩在嘴和鼻子上，防止灰尘和病菌侵入。

   靳以 《跟着老马转》：“这时他又告诉我把口罩向上拉拉，蒙住鼻子，免得飞花钻进鼻孔里去。”

• Dust masks are graded according to the protection they offer.

  防尘口罩根据它们的防护效果分等级。

• Test method for the dead space of filtering particle respirator.

  过滤式防微粒口罩死腔的试验方法.

• Can respirators protect you from biological agents such as Bacteria or Viruses?

  防护口罩是否能够防护象细菌和病毒这样的微生物?

• Q 32 : Do any of 3 M's disposable respirators contain fiberglass material?

  问32:3M的随弃式呼吸防护口罩材料中是否含有玻璃纤维?

• Surgical masks should be changed if they become moist or splattered.

  口罩潮湿或溅湿后应及时更换.

• The smog is so thick that you'd better wear a respirator.

  外面尘雾迷天,最好戴上口罩.

• The patrol team with respirator are patrolling in Wngfujing Street of Beijng.

  王府井大街上带着口罩的巡逻队.

• Can medical facemasks be used to help reduce exposures to biological agents?

  问7:使用医用口罩是否可帮助降低对微生物的暴露?

• Wearing rubber gloves and a dust mask is good prevention.

  戴橡胶手套和防尘口罩是很好的防护措施.

• Require all frontline staff to wear surgical gloves and masks.

  前线员工必须戴上口罩.

• Table 1 : Advantages and Disadvantages of Respirators and Facemasks.

  表 1: 呼吸防护口罩和口罩优缺点对比.

• Test method for total inward leakage of filtering particle respirator.

  过滤式防微粒口罩总透漏率的试验方法.

• Test method for filter efficiency of filtering particle respirator.

  过滤式防微粒口罩过滤效率的试验方法.

• Not all agree masks do that, particularly regarding the flu.

  不是每个人都同意口罩有效, 尤其是就流感而言.

• Wear gloves and a face mask, and wash your hands afterward.

  戴上手套和口罩, 并在事后洗手.