The mask covers the nose and mouth. These are called half-mask air-purifying respirators.
这种面具将口鼻完全遮盖,称为半面罩过滤呼吸器。
词典释义:
净化面膜
The mask covers the nose and mouth. These are called half-mask air-purifying respirators.
这种面具将口鼻完全遮盖,称为半面罩过滤呼吸器。
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