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So v\u1edbi y\u1ebfn nh\u00e0 nu\u00f4i th\u00ec y\u1ebfn \u0111\u1ea3o s\u1ebd \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 cao h\u01a1n v\u1ec1 m\u1eb7t gi\u00e1 tr\u1ecb. Th\u1ee9 nh\u1ea5t l\u00e0 b\u1edfi t\u00ednh ch\u1ea5t khai th\u00e1c v\u00e0 thu ho\u1ea1ch y\u1ebfn \u0111\u1ea3o ph\u1ee9c t\u1ea1p v\u00e0 nguy hi\u1ec3m h\u01a1n. Th\u1ee9 hai do \u0111i\u1ec1u ki\u1ec7n t\u1ef1 nhi\u00ean t\u1ed1t h\u01a1n n\u00ean y\u1ebfn \u0111\u1ea3o th\u01b0\u1eddng c\u00f3 th\u00e2n d\u00e0y, ch\u00e2n c\u1ee9ng v\u00e0 h\u00ecnh d\u1ea1ng gi\u1ed1ng nh\u01b0 1 c\u00e1i ch\u00e9n.<\/p>\n
T\u1ed5 y\u1ebfn th\u00f4 v\u00e0 y\u1ebfn tinh ch\u1ebf<\/h3>\n
Cu\u1ed1i c\u00f9ng l\u00e0 c\u00e1ch ph\u00e2n lo\u1ea1i y\u1ebfn th\u00f4 v\u00e0 y\u1ebfn tinh ch\u1ebf. V\u1eady 2 lo\u1ea1i y\u1ebfn n\u00e0y c\u00f3 g\u00ec kh\u00e1c bi\u1ec7t?<\/p>\n
1. Y\u1ebfn th\u00f4<\/h4>\n
\u0110\u00e2y l\u00e0 lo\u1ea1i y\u1ebfn nguy\u00ean ch\u1ea5t 100%. Ch\u00fang \u0111\u01b0\u1ee3c thu ho\u1ea1ch tr\u1ef1c ti\u1ebfp t\u1eeb nh\u00e0 nu\u00f4i ho\u1eb7c \u0111\u1ea3o m\u00e0 ch\u01b0a qua qu\u00e1 tr\u00ecnh s\u01a1 ch\u1ebf n\u00e0o. V\u00ec v\u1eady y\u1ebfn th\u00f4 s\u1ebd v\u1eabn c\u00f2n nguy\u00ean l\u00f4ng v\u00e0 c\u00e1c t\u1ea1p ch\u1ea5t b\u1ea9n trong t\u1ed5 y\u1ebfn.<\/p>\n
\u0110\u1ec3 ch\u1ebf bi\u1ebfn y\u1ebfn th\u00f4 s\u1ebd m\u1ea5t kh\u00e1 nhi\u1ec1u th\u1eddi gian. N\u1ebfu kh\u00f4ng c\u00f3 kinh nghi\u1ec7m th\u1eadm ch\u00ed c\u00f2n l\u00e0m hao ph\u00ed ch\u1ea5t dinh d\u01b0\u1ee1ng trong t\u1ed5 y\u1ebfn. Tuy nhi\u00ean v\u1eabn r\u1ea5t nhi\u1ec1u kh\u00e1ch h\u00e0ng l\u1ef1a ch\u1ecdn mua y\u1ebfn th\u00f4 v\u00ec n\u00f3 \u0111\u1ea3m b\u1ea3o 100% ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 kh\u00f4ng b\u1ecb l\u00e0m gi\u1ea3.<\/p>\n
2. Y\u1ebfn tinh ch\u1ebf<\/h4>\n
Y\u1ebfn tinh ch\u1ebf hay c\u00f3 th\u1ec3 hi\u1ec3u l\u00e0 lo\u1ea1i y\u1ebfn \u0111\u00e3 \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch l\u00f4ng. Nh\u01b0 v\u1eady so v\u1edbi y\u1ebfn th\u00f4 s\u1ebd kh\u00f4ng c\u1ea7n m\u1ea5t th\u1eddi gian v\u00e0 c\u00f4ng s\u1ee9c \u0111\u1ec3 l\u00e0m s\u1ea1ch n\u1eefa. Lo\u1ea1i y\u1ebfn n\u00e0y s\u1ebd ph\u00f9 h\u1ee3p v\u1edbi nh\u1eefng ng\u01b0\u1eddi kh\u00f4ng c\u00f3 nhi\u1ec1u th\u1eddi gian \u0111\u1ec3 ch\u1ebf bi\u1ebfn y\u1ebfn.<\/p>\n
Tuy nhi\u00ean ch\u00ednh v\u00ec \u0111\u00e3 \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch n\u00ean r\u1ea5t nhi\u1ec1u c\u01a1 s\u1edf \u0111\u00e3 l\u1ee3i d\u1ee5ng qu\u00e1 tr\u00ecnh \u0111\u00f3 \u0111\u1ec3 th\u00eam c\u00e1c ch\u1ea5t ph\u1ee5 gia l\u00e0m t\u0103ng tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a y\u1ebfn. \u0110i\u1ec1u n\u00e0y v\u1eeba \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng y\u1ebfn v\u1eeba l\u00e0 chi\u00eau tr\u00f2 \u0111\u1ec3 ki\u1ebfm th\u00eam l\u1ee3i nhu\u1eadn.<\/p>\n
\u0110\u1ed1i v\u1edbi y\u1ebfn tinh ch\u1ebf s\u1ebd \u0111\u01b0\u1ee3c chia ra l\u00e0m 6 lo\u1ea1i:<\/p>\n
Y\u1ebfn r\u00fat l\u00f4ng kh\u00f4 nguy\u00ean t\u1ed5<\/h4>\n<\/div>\n
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