ํ”„๋ฆฌ๋žœ์„œ๋ผ ์ผ+์—ฌ๊ฐ€ ํ•ฉ์ณ์„œ ํ•˜๋ฃจ์— 12์‹œ๊ฐ„ ์ด์ƒ ์“ฐ๋Š” ๊ฒƒ ๊ฐ™์€๋ฐ

๋ฐฐํ„ฐ๋ฆฌ ํ•˜๋ฃจ์— 3~5% ์ •๋„์‚ฌ์šฉ๋˜๋Š”๋“ฏ