ؾ( ä) ߴܼ Ⱓ ǽ ֿ Ȯ ſ ù° ȫ 赵 Ⱓ ſ ° ػ ֿ ܼӿ ٰ .
̹ ܼӿ , · յܼ ·μ, þ, ⱸ, ܼ Ȱ ǽ ̴.
ػ ֿ ó ߾ڿó 0.03%̸̻ ߵǰ, ó 0.03~0.08%, 0.08~0.20%, 0.20% ̻ ܰ ִ 2 ̻ 5 ¡ Ǵ 2õ ̻ 3õ ݿ óϰ ȴ.
ذ ڴ“ػ ֿ 輺 ؾ θط ̾ ִ” “ΰ Ƚϰ ִ ٴ ⸦ ؼ ܼӻӸ ƴ϶ ǽ ߿ϴ” ߴ.
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