Ȱȯ ǿ |
غ ڷγ 19 Ҵ , ù, ȥ öƽ þ鼭 ȸ ̽ ϳ DZ Ͽ.
öƽ ź ʾҴ 츮 Ȱ dzο ? ϴ Ѵ.
öƽ ϱ ˸´ٴ öƼڽ(plastikos) Ǿ, ̴ 19 籸 ̴ ڳ ʹ ϰ پö ǰ õ ̵尡 öƽ̾, 20 ռ ŬƮ(Bakelite) öƽ 뷮 ô븦 Ǿ.
ϸ ٴٰź, 700 ؾ絿 ӿ öƽ Ǿٴ 츮 ϰ ǰ Ǿ θ ƿ ִٴ ƴұ ϴ Ѵ.
ֱ Ʈ üϿ ģȯ ̺ üϰ ְų ü þ ִµ ̺ źǾ 鶧 67% Ѵٰ Ѵ.
3 Ȱ뵵 Ʈ и ù 츮 10 150 ̻ Ͽ, 12ʹ ܵ Ȯ ȹ̴.
츮 Ȳ ؾ Ϻ и ùε Ÿ ϰ ó ؾ ϴ ùٸ ùǽ, ּ ̴. ⸦ ̷ ٰ ȵ ؾ Ѵ.
ư δ Ƽ ڿ ִ ǰ , ڿ÷ ϴ ֹ, Ƹ Ȱ , ڿ Ǵ ̿ öƽ پ о η ؼ ٰ ʿϴٴ .
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