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多少年来,玻璃的成分一直未变,然而科技发展已经使玻璃不仅仅用来制作各种容器和窗户,它已经是通讯、医学和建筑业不可或缺的材料。
The composition of glass has remained unchanged for many years, but technological advances have made glass more than just containers and windows, but an indispensable material for communications, medicine and construction.