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儿童口罩
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儿童口罩
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mask for children
儿童口罩
日常环境中,儿童人群用于阻隔飞沫、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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maximal hypersurface
maximal ideal
maximal ideal space
maximal ideal theorem
maximal independent edge set
maximal independent set
maximal independent system
maximal independent vertex set
maximal index
maximal inequality
maximal integral
maximal interval
maximal invariant
maximal invariant statistic
maximalism art
maximality
maximality principle
maximality theorem
maximal k-split torus
maximal k-trivial torus
maximal lattice
maximal left ideal
maximal [left,right] ideal
maximal length
maximal Lie submodule
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