<\/span><\/h4>\nNgo\u00e0i vi\u1ec7c kh\u00f4ng ng\u1eebng nghi\u00ean c\u1ee9u ph\u00e1t tri\u1ec3n c\u00f4ng ngh\u1ec7 m\u1edbi, ng\u01b0\u1eddi ti\u00eau d\u00f9ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i t\u00fai \u0111\u1ef1ng r\u00e1c c\u00f3 m\u00e0u s\u1eafc kh\u00e1c nhau \u0111\u1ec3 th\u1ef1c hi\u1ec7n vi\u1ec7c ph\u00e2n lo\u1ea1i v\u00e0 l\u01b0u tr\u1eef r\u00e1c, c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u00e0u \u0111en trong nh\u00e0 b\u1ebfp \u0111\u1ec3 \u0111\u1ef1ng r\u00e1c kh\u00f4ng t\u00e1i ch\u1ebf \u0111\u01b0\u1ee3c, m\u00e0u h\u1ed3ng \u1edf ph\u00f2ng kh\u00e1ch, ph\u00f2ng l\u00e0m vi\u1ec7c. \u0111\u1ec3 ch\u1ee9a r\u00e1c t\u00e1i ch\u1ebf. Ph\u00e2n lo\u1ea1i r\u00e1c theo c\u00e1ch n\u00e0y gi\u00fap ti\u1ebft ki\u1ec7m ti\u1ec1n v\u00e0 th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng, \u0111\u1ed3ng th\u1eddi c\u00f3 th\u1ec3 t\u00e1i ch\u1ebf t\u00e0i nguy\u00ean h\u1ee3p l\u00fd \u0111\u1ec3 t\u00e1i s\u1eed d\u1ee5ng.<\/span><\/p>\n<\/span>Gi\u1ea3m s\u1eed d\u1ee5ng<\/strong><\/em><\/span><\/span><\/h4>\nCh\u00ednh ph\u1ee7 n\u00ean ti\u1ebfp t\u1ee5c trau d\u1ed3i, gi\u00e1o d\u1ee5c v\u00e0 th\u00e2m nh\u1eadp c\u00e1c kh\u00e1i ni\u1ec7m ti\u00ean ti\u1ebfn th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng c\u1ee7a ng\u01b0\u1eddi ti\u00eau d\u00f9ng v\u1ec1 \u201cph\u00e2n lo\u1ea1i t\u00e0i nguy\u00ean\u201d. Vi\u1ec7c s\u1eed d\u1ee5ng t\u00fai nh\u1ef1a ph\u1ea3i tr\u1ea3 ti\u1ec1n kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t c\u00e2u n\u00f3i. Vi\u1ec7c t\u1eeb b\u1ecf t\u00fai nilon t\u01b0\u1edfng ch\u1eebng l\u00e0 vi\u1ec7c nh\u1ecf nh\u01b0ng th\u1ef1c ch\u1ea5t n\u00f3 l\u00e0 m\u1ed9t cu\u1ed9c c\u00e1ch m\u1ea1ng trong l\u1ed1i s\u1ed1ng c\u1ee7a con ng\u01b0\u1eddi, ch\u1eafc ch\u1eafn s\u1ebd mang l\u1ea1i nhi\u1ec1u \u0111au th\u01b0\u01a1ng cho con ng\u01b0\u1eddi. \u0110\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi ti\u00eau d\u00f9ng \u0111\u00e3 quen v\u1edbi vi\u1ec7c s\u1eed d\u1ee5ng t\u00fai nh\u1ef1a mi\u1ec5n ph\u00ed, vi\u1ec7c thay \u0111\u1ed5i th\u00f3i quen ti\u00eau d\u00f9ng l\u00e2u d\u00e0i c\u1ee7a h\u1ecd \u0111\u00f2i h\u1ecfi m\u1ed9t qu\u00e1 tr\u00ecnh d\u1ef1a tr\u00ean s\u1ef1 tuy\u00ean truy\u1ec1n v\u00e0 gi\u00e1o d\u1ee5c r\u1ed9ng r\u00e3i trong to\u00e0n x\u00e3 h\u1ed9i.<\/span><\/p>\n