protective bedding 中文意思是什麼
protective bedding
解釋
防毒被墊- protective : adj. 1. 保護的，防護的。2. 保護貿易的。adv. -ly ,-ness n.
- bedding : n. 1. 寢具，床上用品。2. （家畜的）墊草。3. 基底；【建築】基坑；【地質學；地理學】層里；【農業】定植。
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The study found that the prevalence of asthma in hong kong is twice of that in beijing or guangzhou. the study also found that risk factors such as home smoking, maternal smoking during pregnancy, use of synthetic pillow ( foam ), synthetic bedding and use of gas as cooking fuel are closely linked with higher prevalence of asthma. the protective factors are breast feeding ( the longer duration the better ) and early attendance of day care
研究發現本港兒童患哮喘的數字是北京及廣州的兩倍，而一些危險因素，包括家中有成員吸煙、母親懷孕時吸煙、使用合成物質的枕頭和被鋪、及使用氣體燃料煮食，都與較高發病率有密切連系，而一些保護性因素則有母乳哺育（時間越長越好）及較早接受託兒服務。
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