Ϻ ġ ī ΰ ϴ 屸 ̲ Դٰ ߴ. ᱹ ΰ ̷ 屸 ô뿡 پ Ḧ ã ߴµ ƼŸ ̷ ȭDZ ߴ.
öᰡ ȭ ñ 1780 ̰, ձ 1800 , ˷̴ 1890 , η 1910 ӿ ƼŸ ȭ ñ 1950 ٸ 鿡 ȭ 簡 ª.
鼭 ļ پ ƼŸ ַ , ٽɺǰ Ǵ ǰ ȭDZ Ư 縦 ִ. ƴ μμ ƼŸ ߵ ñⰡ 30 ä ȴٴ ǿ ߾ , 强 ȴ.
ƼŸ 9° dz ӿ ұϰ Ը ̴. ҿ ģȭ Ը ̱ ̴.
Ϲ ƼŸ ܰ 3ܰ ִ. 1ܰ 2ܰ װƮ Ż縦 ܰε ̱ Ϻ, þ ϰ ִ. ƼŸ δ ƼŸ 1~2ܰ Ұϴ. Ƽ ϴ ٷ 3ܰ. 1~2ܰ踦 Ż縦 鿩 ǰ ϰ ִ ̴.
Ƽ ۳ 3б 41.2% 224 ݸ 53.3% 32 ߰, Ⱓ 53.7% 28 2004 4б ͽ 3б ͽ ϰ ִ.
3б ͷ 14~15% ؿ ǰ ִ.
̴ ȸ翡 ͷ ϰ ֱ ϴ. Ƽ ͼ ָ ϰ ֱ ְ Ȯǽ Ǵ ̶ Ⲩ Ѵٰ Ѵ. ߱ BP ̿ õ PTA 100 OP 5% ۿ ʾұ Ϻη ߴٰ Ѵ.
ü Ϻ Ÿġ Coek翡 ̵ ü麸 10~15% Ұ ̷ ȯ ӿ ͷ 15% ؿ ߱ Ѵٴ ü ̶ Ѵ.
ٰ 簡 ü鿡 ƴϴ. ̹ 7 ȣ Jordκ 2,300 ( 230 ) ð ִ. Jord ȣ Ͼ ȸμ End-user ̻ 1ü ̱ INCO簡 ε INCO簡 ȣֿ ð õ . ü ΰ ұϰ OP 15% Ѵ.
ȭ ü CMAI ƼŸ ߴ. Ƽ ַ PTA ȭ ϴ ϸ 2008 PTA õ ƼŸ Ը 37,900 ̸ ̶ CMAI 强 ȿ ǹѴ.
̹ ٿ Ȱ ̴. 1~2ܰ踦 ϰ ִ ̱ þ ü Ŀ и ټ ũ ̶ ִ. ұϰ Ը Ŀٸ ̵ ü鵵 Ż縦 ̱ 强 Ÿ ȴ.
( 0)