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日常防护口罩
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日常防护口罩
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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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crystalline inclusion complex
crystalline lens
crystalline membrane electrode
crystalline polymer
crystalline polymers
crystalline precipitate
crystalline quality
crystalline representation
crystalline silicon solar solar cell
crystalline size
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crystalline state of semiconductor
crystalline structure factor
crystalline structure of polymers
crystalline texture
crystalline water
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crystallization elution fractionation
crystallization mechanism
crystallization of glass
crystallization process control system
crystallization process in polymer
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