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衣:化纖織物使衣服的顏色與質地豐富多彩 食:食品添加劑及防腐劑的使用是食物種類日益繁多 住:新型材料的使用使住房更加環保舒適 行:合金及橡膠產品的發展使出行方便快捷 用:各種材料的相繼產生使得我們所使用的各類工具更加靈巧輕便
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