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dong ji jia shi bie guo liang
Pages: 19
Year: Issue:  1
Journal: Knowledge is Power

Abstract: 众所周知,冬季空气比较干燥,白天的平均相对湿度一般低于50%,加之气候寒冷,室内采暖,居室内的湿度常常只有30%左右.较低的空气湿度对人体健康是不利的,尤其是对呼吸道疾病不利.湿度过低会加快蒸发,干燥的空气易夺走人体的水分,使人皮肤干裂,口腔、鼻腔黏膜受到刺激,出现口渴、干咳、声哑、喉痛等症状,所以在冬季干冷空气侵入时,极易诱发咽炎、气管炎、肺炎等病症.
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