k\u00ednh h\u00e0n \u0111a n\u0103ng<\/a> cho ph\u00e9p ng\u01b0\u1eddi th\u1ee3 h\u00e0n h\u00e0n li\u00ean t\u1ee5c trong nhi\u1ec1u gi\u1edd m\u00e0 v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c t\u1ea7m nh\u00ecn r\u00f5 r\u00e0ng. C\u1ea3m bi\u1ebfn \u00e1nh s\u00e1ng gi\u00fap \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 t\u1ed1i c\u1ee7a m\u00e0n h\u00ecnh t\u1ef1 \u0111\u1ed9ng, ph\u00f9 h\u1ee3p v\u1edbi c\u01b0\u1eddng \u0111\u1ed9 \u00e1nh s\u00e1ng c\u1ee7a h\u1ed3 quang. Vi\u1ec7c n\u00e0y gi\u00fap ng\u01b0\u1eddi th\u1ee3 h\u00e0n c\u00f3 th\u1ec3 l\u00e0m vi\u1ec7c hi\u1ec7u qu\u1ea3 v\u00e0 ch\u00ednh x\u00e1c, \u0111\u1ed3ng th\u1eddi gi\u1eef cho m\u1eaft lu\u00f4n \u0111\u01b0\u1ee3c tho\u1ea3i m\u00e1i v\u00e0 kh\u00f4ng m\u1ecfi m\u1eaft khi l\u00e0m vi\u1ec7c trong th\u1eddi gian d\u00e0i.<\/span><\/p>\nK\u00ednh h\u00e0n \u0111i\u1ec7n t\u1eed c\u00f2n \u0111\u01b0\u1ee3c trang b\u1ecb gi\u00e1 \u0111\u1ee1 v\u00e0 \u0111\u1ec7m nh\u1ef1a d\u1ebbo, gi\u00fap ng\u01b0\u1eddi s\u1eed d\u1ee5ng c\u00f3 th\u1ec3 l\u00e0m vi\u1ec7c trong th\u1eddi gian d\u00e0i m\u00e0 v\u1eabn c\u1ea3m th\u1ea5y tho\u1ea3i m\u00e1i. Gi\u00e1 \u0111\u1ee1 c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 d\u00e0i linh ho\u1ea1t \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi k\u00edch c\u1ee1 \u0111\u1ea7u c\u1ee7a ng\u01b0\u1eddi th\u1ee3 h\u00e0n, \u0111\u1ea3m b\u1ea3o k\u00ednh v\u1eeba v\u1eb7n v\u00e0 ch\u1eafc ch\u1eafn khi \u0111eo. \u0110\u1ec7m nh\u1ef1a d\u1ebbo t\u1ea1o s\u1ef1 \u00eam \u00e1i v\u00e0 tho\u1ea3i m\u00e1i cho ng\u01b0\u1eddi th\u1ee3 h\u00e0n, gi\u00fap h\u1ecd t\u1eadp trung v\u00e0o c\u00f4ng vi\u1ec7c m\u00e0 kh\u00f4ng b\u1ecb m\u1ea5t t\u1eadp trung do c\u1ea3m gi\u00e1c kh\u00f4ng tho\u1ea3i m\u00e1i khi \u0111eo k\u00ednh trong th\u1eddi gian d\u00e0i.<\/p>\n