口罩:soil respirator
口罩的英文:
mask
respirator
gauze mask
breathing mask
mouth-muffle
参考例句:
Today, a few people wear surgical masks in public, and some dare not to dress in light-colored clothing.
现在一些人在公共场合戴着外科手术的口罩,更有一些人不敢穿浅色的衣裙。
一般来说,在外教的课堂上,用mask来表达口罩的用法比较普遍。在词典中,mask指的是:a covering for part or all of the face, worn to hide or protect it.(一部分或全部脸的覆盖物,用来隐藏或保护它。)
N95口罩=N95-certified masks
为啥叫N95型口罩?因为是NIOSH(National Institute for Occupational Safety and Health,美国国家职业安全卫生研究所)认证的9种防颗粒物口罩中的一种。
达到N95等级的口罩可以滤除超过95%的直径大于0.3微米的颗粒物。
A mask rated N95 filters out more than 95% of particles larger than 0.3 microns.