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日常防护口罩
释义
日常防护口罩
Encyclopedia
工学
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释
Ordinary protective masks
日常防护口罩
日常环境中,普通人群用于阻隔飞沫、花粉、柳絮、微生物等颗粒物传播,阻隔鼻腔或口腔呼出或喷出污染物所佩戴的民用卫生口罩。
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spurge family
spurion
spurious
spurious correlation
spurious count
spurious disk
spurious fruit
spurious image
spurious line
spurious periodicity
spurious radiation
spurious signal
spurious state
spurium
spur of a matrix
spur of nasal septum
spur reaction
spurs
spurt from inlet of mould box
spurting copper basin
sputnik
Sputnik-1
Sputnik Planitia
sputter deposition
sputtered film disk
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