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ȸ ȸ ִ ϰ κ ȣμ ȸ Ǹ ȳ ȭӰ ϱ Ͽ ̴.
ֱٿ ټ ε 뺯ϱ ȸ Ȱϰ ִ.
ȸ þ鼭 ſ ߴ ҹ پ , Ȯ⸦ ϰ ϴ 찡 ð ־ α ֹε ı, , ε ħعް ־ ȸ ⺻ ȸ ȭ ǰ ִ.
츮 ȸ ϴ Ͽ ȸ 14 ǰϿ Ȯ Һ ؿ ְ ְ б 65dB , Ÿ 75dB Ϸ ߰ ְ б 60dB , Ÿ 65dB Ϸ Ǿ ְ, ̸ ʰ ܰ躰 1ܰ ȸ , 2ܰ Ȯ , 3ܰ Ȯ ӽúġ Ǵܵ ȸ Ģ ϰ ִ.
ùε ñϴ Ҵ ڰ ġ ǹ ܺ 1 〜 3.5m ϵ, Ǵ 1.2 〜 1.5m ̿ Ѵ. ٸ, ֵ ǹ Ͽ Ǵ μ ǹ, ̳ λ ü, 繫 ҿ Ѵ.
ȸ 忡 ڽŵ Ǹ Ű ȸ ȭ ȸ Ե ̴.
ȸ ڴ ڹ ؼϿ ùΰ Բϴ ȭ Ͽ ̴.
ȣ honam7800@hanmail.net