{"id":6248371,"date":"2025-08-28T03:05:00","date_gmt":"2025-08-27T20:05:00","guid":{"rendered":"https:\/\/yp.vn\/?p=6248371"},"modified":"2025-08-28T14:40:05","modified_gmt":"2025-08-28T07:40:05","slug":"vi-sao-bac-dan-vong-bi-bi-qua-nhiet","status":"publish","type":"post","link":"https:\/\/yp.vn\/vi-sao-bac-dan-vong-bi-bi-qua-nhiet\/","title":{"rendered":"V\u00ec sao B\u1ea1c \u0111\u1ea1n v\u00f2ng bi b\u1ecb qu\u00e1 nhi\u1ec7t"},"content":{"rendered":"\r\n

B\u1ea1c \u0111\u1ea1n l\u00e0 chi ti\u1ebft m\u00e1y c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao, c\u00f3 r\u1ea5t nhi\u1ec1u nguy\u00ean nh\u00e2n d\u1eabn \u0111\u1ebfn gi\u1edbi h\u1ea1n m\u1ecfi c\u1ee7a n\u00f3 d\u1eabn \u0111\u1ebfn t\u00e1c h\u1ea1i kh\u00f3 l\u01b0\u1eddng, trong \u0111\u00f3 s\u1ef1 qu\u00e1 nhi\u1ec7t l\u00e0 nguy\u00ean nh\u00e2n ch\u00ednh. V\u1eady v\u00ec sao b\u1ea1c \u0111\u1ea1n v\u00f2ng bi<\/a><\/strong> b\u1ecb qu\u00e1 nhi\u1ec7t?<\/p>\r\n\r\n\r\n\r\n

S\u1ef1 qu\u00e1 nhi\u1ec7t \u1edf b\u1ea1c \u0111\u1ea1n v\u00f2ng bi<\/a><\/strong> l\u00e0 s\u1ef1 n\u00f3ng l\u00ean b\u1ea5t th\u01b0\u1eddng c\u1ee7a n\u00f3 trong t\u00ecnh tr\u1ea1ng ho\u1ea1t \u0111\u1ed9ng. C\u00f3 r\u1ea5t nhi\u1ec1u nguy\u00ean nh\u00e2n d\u1eabn \u0111\u1ebfn s\u1ef1 nhi\u1ec7t n\u00e0y<\/p>\r\n

C\u00e1c nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y ra qu\u00e1 nhi\u1ec7t c\u1ee7a b\u1ea1c \u0111\u1ea1n v\u00f2ng bi<\/h3>\r\n\r\n\r\n\r\n\r\n\r\n

\u2022 L\u1ef1a ch\u1ecdn lo\u1ea1i d\u1ea7u m\u1ee1 b\u00f4i tr\u01a1n kh\u00f4ng th\u00edch h\u1ee3p<\/strong><\/p>\r\n\r\n\r\n\r\n

D\u1ea7u m\u1ee1 b\u00f4i tr\u01a1n c\u00f3 vai tr\u00f2 b\u00f4i tr\u01a1n, l\u00e0m gi\u1ea3m \u0111i s\u1ef1 hao m\u00f2n do ma s\u00e1t g\u00e2y n\u00ean, ch\u00fang c\u0169ng c\u00f3 ch\u1ee9c n\u0103ng truy\u1ec1n v\u00e0 d\u1eabn nhi\u1ec7t hi\u1ec7u qu\u1ea3. Do \u0111\u00f3, t\u00f9y thu\u1ed9c v\u00e0o m\u1ed7i lo\u1ea1i v\u00f2ng bi, b\u1ea1c \u0111\u1ea1n m\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t khuy\u1ebfn c\u00e1o s\u1eed d\u1ee5ng lo\u1ea1i n\u00e0o cho th\u00edch h\u1ee3p. C\u00f3 r\u1ea5t nhi\u1ec1u ng\u01b0\u1eddi s\u1eed d\u1ee5ng d\u1ea7u m\u1ee1 b\u00f4i tr\u01a1n cho v\u00f2ng bi m\u00e0 kh\u00f4ng c\u1ea7n bi\u1ebft ch\u00fang l\u00e0 lo\u1ea1i n\u00e0o?<\/p>\r\n

\u0110i\u1ec1u n\u00e0y qu\u1ea3 l\u00e0 sai l\u1ea7m ngay t\u1eeb b\u01b0\u1edbc \u0111\u1ea7u. V\u00ec m\u1ed7i lo\u1ea1i d\u1ea7u m\u1ee1 b\u00f4i tr\u01a1n ch\u00fang c\u00f3 \u0111\u1ed9 nh\u1edbt v\u00e0 ho\u1ea1t \u0111\u1ed9ng trong t\u1eebng \u0111i\u1ec1u ki\u1ec7n kh\u00e1c nhau. Do \u0111\u00f3 \u0111\u1ec3 s\u1eed d\u1ee5ng \u0111\u00fang lo\u1ea1i c\u1ea7n tham kh\u1ea3o khuy\u1ebfn c\u00e1o c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t.\u00a0<\/p>\r\n

\"b\u1ea1c

S\u1ef1 qu\u00e1 nhi\u1ec7t \u1edf b\u1ea1c \u0111\u1ea1n v\u00f2ng bi l\u00e0 s\u1ef1 n\u00f3ng l\u00ean b\u1ea5t th\u01b0\u1eddng c\u1ee7a n\u00f3 trong t\u00ecnh tr\u1ea1ng ho\u1ea1t \u0111\u1ed9ng<\/p><\/div>\r\n\r\n\r\n\r\n

\u2022 S\u1eed d\u1ee5ng d\u1ea7u m\u1ee1 b\u00f4i tr\u01a1n qu\u00e1 nhi\u1ec1u<\/strong><\/p>\r\n\r\n\r\n\r\n

M\u1ed9t s\u1ed1 lo\u1ea1i v\u00f2ng bi, b\u1ea1c \u0111\u1ea1n nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u00e3 tra d\u1ea7u, ho\u1eb7c m\u1ee1 b\u00f4i tr\u01a1n. H\u1ecd \u0111\u00e3 t\u00ednh to\u00e1n l\u01b0\u1ee3ng d\u1ea7u m\u1ee1 n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi chu k\u1ef3 v\u00f2ng \u0111\u1eddi c\u1ee7a v\u00f2ng bi. Ch\u00fang ta mua v\u1ec1 l\u1eafp \u0111\u1eb7t v\u00e0 s\u1eed d\u1ee5ng lu\u00f4n m\u00e0 kh\u00f4ng c\u1ea7n tra th\u00eam. C\u00f3 m\u1ed9t s\u1ed1 ng\u01b0\u1eddi th\u01b0\u1eddng m\u1edf n\u1eafp v\u00f2ng bi v\u00e0 tra th\u00eam.<\/p>\r\n

\u0110i\u1ec1u n\u00e0y l\u00e0 kh\u00f4ng n\u00ean b\u1edfi v\u00ec khi tra th\u00eam n\u1ebfu kh\u00f4ng c\u00f9ng lo\u1ea1i v\u1edbi lo\u1ea1i \u0111\u00e3 c\u00f3 s\u1eb5n th\u00ec c\u1ef1c k\u1ef3 nguy h\u1ea1i. Khi ho\u1ea1t \u0111\u1ed9ng, ch\u00fang c\u00f3 th\u1ec3 ph\u1ea3n \u1ee9ng do kh\u00f4ng l\u00e0m vi\u1ec7c \u1edf ch\u1ebf \u0111\u1ed9 c\u00f9ng nhau, s\u1ebd t\u1ea1o ra c\u1eb7n k\u1ebft d\u00ednh \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn v\u00f2ng bi. N\u1ebfu lo\u1ea1i d\u1ea7u m\u1ee1 tra v\u00e0o c\u00f9ng lo\u1ea1i v\u1edbi lo\u1ea1i c\u00f3 s\u1eb5n \u0111i\u1ec1u n\u00e0y c\u0169ng kh\u00f4ng t\u1ed1t l\u00e0m gi\u1ea3m \u0111i \u0111\u1ed9 nh\u1edbt, gi\u1ea3m \u0111i s\u1ef1 truy\u1ec1n nhi\u1ec7t do \u0111\u00f3 \u00edt nhi\u1ec1u \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ho\u1ea1t \u0111\u1ed9ng c\u1ee7a v\u00f2ng bi.<\/p>\r\n\r\n\r\n\r\n

\u2022 D\u1ea7u m\u1ee1 b\u00f4i tr\u01a1n nhi\u1ec5m t\u1ea1p ch\u1ea5t<\/strong><\/p>\r\n\r\n\r\n\r\n

D\u1ea7u m\u1ee1 b\u00f4i tr\u01a1n b\u1ecb nhi\u1ec5m b\u1ea9n l\u00e0 t\u00e1c nh\u00e2n tr\u1ef1c ti\u1ebfp \u0111\u1ebfn s\u1ef1 qu\u00e1 nhi\u1ec7t c\u1ee7a v\u00f2ng bi. B\u1edfi v\u00ec khi ho\u1ea1t \u0111\u1ed9ng c\u00e1c t\u1ea1p ch\u1ea5t \u0111\u01b0\u1ee3c nh\u00e0 tr\u1ed9n, va ch\u1ea1m, c\u00f3 th\u1ec3 x\u1ea3y ra ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc l\u00e0m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 nh\u1edbt v\u00e0 l\u00e0m m\u1ea5t h\u1eb3n t\u00ednh b\u00f4i tr\u01a1n c\u1ee7a d\u1ea7u m\u1ee1. Do \u0111\u00f3 s\u1ebd l\u00e0m c\u1ea3n tr\u1edf s\u1ef1 ho\u1ea1t \u0111\u1ed9ng, ch\u00ednh x\u00e1c h\u01a1n l\u00e0 sinh ma s\u00e1t l\u1edbn, \u00e0nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ef1 sinh c\u00f4ng c\u1ee7a m\u00e1y m\u00f3c. C\u00f3 nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p d\u1ea7u m\u1ee1 nhi\u1ec5m b\u1ea9n ho\u1ea1t \u0111\u1ed9ng l\u00e2u ng\u00e0y b\u1ecb \u0111\u00f3ng th\u00e0nh keo tr\u01a1 \u0111\u1ebfn m\u1ee9c m\u00e1y m\u00f3c kh\u00f4ng th\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c.<\/p>\r\n\r\n\r\n\r\n

B\u1ea1c \u0111\u1ea1n v\u00e0 Nguy\u00ean Nh\u00e2n Qu\u00e1 Nhi\u1ec7t<\/h2>\r\n

\u2022 L\u1ef1a ch\u1ecdn v\u00e0 L\u1eafp r\u00e1p sai b\u1ea1c \u0111\u1ea1n v\u00f2ng bi<\/a> hay do sai trong thi\u1ebft k\u1ebf<\/strong><\/p>\r\n\r\n\r\n\r\n

C\u00f3 r\u1ea5t nhi\u1ec1u lo\u1ea1i v\u00f2ng bi \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t \u0111\u1ec3 th\u00edch \u1ee9ng nghi\u1ec7p v\u1ee5 c\u1ee7a t\u1eebng b\u1ed9 ph\u1eadn, c\u1ee7a t\u1eebng lo\u1ea1i m\u00e1y m\u00f3c kh\u00e1c nhau. Ch\u00fang ta kh\u00f4ng th\u1ec3 thay th\u1ebf v\u00f2ng bi l\u1eafp trong c\u1ea7n tr\u1ee5c t\u1ea3i tr\u1ecdng l\u1edbn l\u1eafp v\u00e0o h\u1ec7 th\u1ed1ng motor. M\u1ed7i lo\u1ea1i v\u00f2ng bi \u0111\u01b0\u1ee3c c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t quy \u0111\u1ecbnh chung v\u1ec1 c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt nh\u01b0: k\u00edch th\u01b0\u1edbc, t\u1ed1c \u0111\u1ed9, m\u1ee9c \u0111\u1ed9 ch\u1ecbu t\u1ea3i…<\/p>\r\n

M\u1ed9t ng\u01b0\u1eddi hi\u1ec3u \u0111\u01b0\u1ee3c th\u00f4ng s\u1ed1 c\u1ee7a v\u00f2ng bi \u0111em \u0111\u1ed1i chi\u1ebfu v\u1edbi h\u1ec7 th\u1ed1ng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 ph\u1eadn m\u00e1y m\u00f3c c\u1ee7a m\u00ecnh \u0111\u00f3 l\u00e0 vi\u1ec7c l\u00e0m th\u00f4ng minh \u0111\u1ec3 ch\u1ecdn l\u1ef1a v\u00f2ng bi th\u00edch h\u1ee3p nh\u1ea5t. Nh\u01b0ng n\u1ebfu b\u1ea1n kh\u00f4ng r\u00e0nh v\u1ec1 m\u1ed9t trong hai \u0111i\u1ec1u \u1edf tr\u00ean xin vui l\u00f2ng t\u00ecm hi\u1ec3u \u00fd ki\u1ebfn c\u1ee7a chuy\u00ean gia, ho\u1eb7c c\u00e1c khuy\u1ebfn c\u00e1o c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t. Ngo\u00e0i ra, b\u1ea1n n\u00ean l\u1ef1a ch\u1ecdn v\u00f2ng bi, b\u1ea1c \u0111\u1ea1n ch\u00ednh h\u00e3ng r\u00f5 ngu\u1ed3n g\u1ed1c \u0111\u1ec3 b\u1ed9 m\u00e1y c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh h\u01a1n.<\/p>\r\n\r\n\r\n\r\n

\u2022 \u0110i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh kh\u1eafc nghi\u1ec7t hay b\u1ea1c \u0111\u1ea1n v\u00f2ng bi<\/a> b\u1ecb qu\u00e1 t\u1ea3i.<\/strong><\/p>\r\n\r\n\r\n\r\n

\u0110i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh hay \u0111i\u1ec1u ki\u00ean l\u00e0m vi\u1ec7c c\u1ee7a v\u00f2ng bi l\u00e0 m\u00f4i tr\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a n\u00f3. \u0110i\u1ec1u ki\u1ec7n n\u00e0y c\u00f3 th\u1ec3 l\u00e0 s\u1ef1 ho\u1ea1t \u0111\u1ed9ng s\u1ed1 v\u00f2ng quay qu\u00e1 m\u1ee9c gi\u1edbi h\u1ea1n, m\u1ee9c \u0111\u1ed9 ch\u1ecbu t\u1ea3i l\u1edbn, ho\u1ea1t \u0111\u1ed9ng trong m\u00f4i tr\u01b0\u1eddng \u00f4 nhi\u1ec5m v\u1ec1 kh\u00f4ng kh\u00ed, n\u00f3ng, m\u00f4i tr\u01b0\u1eddng h\u00f3a ch\u1ea5t…<\/p>\r\n\r\n\r\n\r\n

Nguy\u00ean nh\u00e2n quan tr\u1ecdng nh\u1ea5t l\u00e0 m\u1ea5t \u0111\u1ed3ng t\u00e2m l\u1ed7 g\u1ed1i khi l\u1eafp \u0111\u1eb7t. T\u00f4i s\u1ebd t\u1eadp trung v\u00e0o v\u1ea5n \u0111\u1ec1 n\u00e0y nhi\u1ec1u nh\u1ea5t.\u00a0<\/strong><\/p>\r\n\r\n\r\n\r\n

T\u1ed5ng qu\u00e1t, c\u00f3 hai lo\u1ea1i v\u00f2ng bi: \u1ed5 bi c\u1ea7u v\u00e0 \u1ed5 bi \u0111\u0169a. M\u1ed7i lo\u1ea1i n\u00e0y c\u00f3 nhi\u1ec1u ki\u1ec3u k\u1ebft c\u1ea5u kh\u00e1c nhau, nh\u01b0ng c\u01a1 b\u1ea3n th\u00ec v\u00f2ng bi c\u1ea7u l\u00e0 lo\u1ea1i b\u1ec1 m\u1eb7t bi ti\u1ebfp x\u00fac \u0111i\u1ec3m c\u00f2n v\u00f2ng bi \u0111\u0169a l\u00e0 lo\u1ea1i ti\u1ebfp x\u00fac \u0111\u01b0\u1eddng. V\u00f2ng bi \u0111\u0169a cung c\u1ea5p kh\u1ea3 n\u0103ng mang t\u1ea3i t\u1ed1t h\u01a1n n\u00ean ch\u1ecbu \u0111\u01b0\u1ee3c t\u1ea3i cao h\u01a1n v\u00f2ng bi c\u1ea7u, nh\u01b0ng n\u00f3 l\u1ea1i sinh ra nhi\u1ec7t nhi\u1ec1u h\u01a1n v\u00f2ng bi c\u1ea7u.<\/p>\r\n\r\n\r\n\r\n

\r\n
\"B\u1ea1c

C\u00f3 r\u1ea5t nhi\u1ec1u lo\u1ea1i b\u1ea1c \u0111\u1ea1n v\u00f2ng bi \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t \u0111\u1ec3 th\u00edch \u1ee9ng nghi\u1ec7p v\u1ee5 c\u1ee7a t\u1eebng b\u1ed9 ph\u1eadn<\/p><\/div>\r\n<\/figure>\r\n\r\n\r\n\r\n

C\u00e1c d\u1ea1ng ti\u1ebfp x\u00fac \u0111\u01b0\u1eddng, c\u00e1c d\u1ea1ng h\u00ecnh h\u1ecdc c\u1ee7a b\u1ea1c \u0111\u1ea1n v\u00f2ng bi<\/strong><\/a> \u0111\u0169a, c\u00e1c ph\u01b0\u01a1ng ph\u00e1p s\u1ea3n xu\u1ea5t v\u00e0 nhi\u1ec1u y\u1ebfu t\u1ed1 kh\u00e1c \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c t\u1ed1i thi\u1ec3u l\u01b0\u1ee3ng nhi\u1ec7t sinh ra. \u0110\u1ed1i v\u1edbi v\u00f2ng bi \u0111\u0169a c\u00f4n m\u1ed9t d\u00e3y, g\u00f3c l\u1ec7ch t\u00e2m (ch\u00fa \u00fd l\u00e0 chung ta kh\u00f4ng \u0111\u1ec1 c\u1eadp t\u1edbi s\u1ef1 m\u1ea5t \u0111\u1ed3ng t\u00e2m gi\u1eefa tr\u1ee5c b\u01a1m v\u00e0 tr\u1ee5c m\u00f4t\u01a1 m\u00e0 l\u00e0 s\u1ef1 \u0111\u1ed3ng t\u00e2m c\u1ee7a c\u00e1c l\u1ed7 g\u1ed1i bu\u1ed3ng \u0111\u1ee1) ch\u1ec9 cho ph\u00e9p kho\u1ea3ng 1 ph\u00fat (1\/60 c\u1ee7a 1 \u0111\u1ed9) th\u00ec v\u00f2ng bi c\u00f3 th\u1ec3 b\u00f9 l\u01b0\u1ee3ng sai l\u1ec7ch n\u00e0y.<\/p>\r\n

M\u1ed9t v\u00e0i nh\u00e0 s\u1ea3n xu\u1ea5t v\u00f2ng bi s\u1eed d\u1ee5ng bi\u00ean d\u1ea1ng logar\u00edt m\u00e0 gi\u00fap l\u00e0m t\u0103ng gi\u00e1 tr\u1ecb g\u00f3c l\u1ec7ch t\u00e2m cho ph\u00e9p t\u1edbi 3 ph\u00fat (3\/60 c\u1ee7a 1 \u0111\u1ed9) c\u1ee7a m\u1ed9t cung. \u0110i\u1ec1u n\u00e0y l\u00e0 t\u1ed1t, nh\u01b0ng kh\u00f4ng nhi\u1ec1u.<\/p>\r\n\r\n\r\n\r\n

Ch\u00fang ta h\u00e3y xem v\u00ed d\u1ee5 sau, h\u00ecnh 1 l\u00e0 b\u01a1m ly t\u00e2m \u0111\u1ee9ng, v\u1edbi kho\u1ea3ng c\u00e1ch 24inch gi\u1eefa 2 t\u00e2m v\u00f2ng bi c\u1ee7a 2 g\u1ed1i \u0111\u1ee1 v\u00e0 \u0111\u01b0\u1eddng k\u00ednh tr\u1ee5c l\u00e0 4 inch.<\/p>\r\n\r\n\r\n\r\n

H\u00e3y c\u00f3 c\u1ea3m nh\u1eadn v\u1ec1 c\u00e1c con s\u1ed1, gi\u1ea3 s\u1eed \u0111\u01b0\u1eddng k\u00ednh trong c\u1ee7a l\u1ed7 g\u1ed1i l\u1eafp v\u00f2ng bi l\u00e0 8 inch. \u0110\u1ec3 duy tr\u00ec \u0111\u1ed9 l\u1ec7ch t\u00e2m c\u1ee7a c\u00e1c g\u1ed1i \u0111\u1ee1 trong kho\u1ea3ng 1ph\u00fat (1\/60 c\u1ee7a 1 \u0111\u1ed9), ch\u00fang ta c\u1ea7n gi\u1ea3i quy\u1ebft m\u1ed1i quan h\u1ec7 h\u00ecnh h\u1ecdc \u0111\u01a1n gi\u1ea3n:
tan(1 ph\u00fat)=c\/L<\/p>\r\n


Trong \u0111\u00f3<\/strong><\/em>:
c: \u0111\u1ed9 \u0111\u1ed3ng t\u00e2m
L: kho\u1ea3ng c\u00e1ch gi\u1eefa 2 t\u00e2m \u1ed5 bi 2 g\u1ed1i
Suy ra C=12 inch x tan(1\/60 \u0111\u1ed9)= 0,003 inch (1mil=0,01 inch = 0,025mm = 25,4 micron)
N\u1ebfu c\u00e1c l\u1ed7 g\u1ed1i trong v\u00ed d\u1ee5 n\u00e0y c\u00f3 \u0111\u1ed9 \u0111\u1ed3ng t\u00e2m trong kho\u1ea3ng 3 mils (kh\u00f4ng nhi\u1ec1u!), c\u00e1c v\u00f2ng bi c\u00f3 th\u1ec3 l\u00e0m vi\u1ec7c trong \u0111\u1ed9 l\u1ec7ch t\u00e2m cho ph\u00e9p. N\u1ebfu \u0111\u1ed9 l\u1ec7ch t\u00e2m cao h\u01a1n cho ph\u00e9p s\u1ebd d\u1eabn \u0111\u1ebfn qu\u00e1 nhi\u1ec7t t\u1ea1i c\u00e1c v\u00f2ng bi v\u00e0 d\u1eabn t\u1edbi h\u01b0 h\u1ecfng.<\/p>\r\n\r\n\r\n\r\n\r\n\r\n

Th\u00f4ng th\u01b0\u1eddng c\u00e1c b\u01a1m m\u1edbi \u0111\u1ec1u \u0111\u1ea1t gi\u00e1 tr\u1ecb l\u1ec7ch t\u00e2m y\u00eau c\u1ea7u, nh\u01b0ng sau nhi\u1ec1u n\u0103m v\u1eadn h\u00e0nh c\u1ea7n ki\u1ec3m tra \u0111\u1ed9 \u0111\u1ed3ng t\u00e2m c\u1ee7a c\u00e1c l\u1ed7 g\u1ed1i khi th\u00e1o s\u1eeda ch\u1eefa.<\/p>\r\n\r\n\r\n\r\n

\u0110\u1ec3 gi\u1ea3m \u1ea3nh h\u01b0\u1edfng do m\u1ea5t \u0111\u1ed3ng t\u00e2m, ng\u01b0\u1eddi ta thi\u1ebft k\u1ebf v\u00f2ng bi \u0111\u0169a c\u00f4n l\u1eafp \u1edf m\u1ed9t \u0111\u1ea7u c\u1ee7a tr\u1ee5c thay v\u00ec l\u1eafp lo\u1ea1i v\u00f2ng bi \u0111\u0169a tr\u1ee5. Nh\u01b0 \u1edf h\u00ecnh 1, v\u00f2ng bi \u0111\u0169a tr\u1ee5 \u1edf g\u1ed1i tr\u00ean l\u1eafp \u00fap m\u1eb7t v\u1edbi nhau, v\u00e0 g\u1ed1i ph\u00eda d\u01b0\u1edbi l\u00e0 c\u1eb7p v\u00f2ng bi \u0111\u0169a c\u00f4n (c\u00f3 kh\u1ea3 n\u0103ng t\u1ef1 c\u00e2n b\u1eb1ng).<\/p>\r\n\r\n\r\n\r\n

\u00a0<\/p>\r\n","protected":false},"excerpt":{"rendered":"

B\u1ea1c \u0111\u1ea1n l\u00e0 chi ti\u1ebft m\u00e1y c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao, c\u00f3 r\u1ea5t nhi\u1ec1u nguy\u00ean nh\u00e2n d\u1eabn \u0111\u1ebfn gi\u1edbi h\u1ea1n m\u1ecfi c\u1ee7a n\u00f3 d\u1eabn \u0111\u1ebfn t\u00e1c h\u1ea1i kh\u00f3 l\u01b0\u1eddng, trong \u0111\u00f3 s\u1ef1 qu\u00e1 nhi\u1ec7t l\u00e0 nguy\u00ean nh\u00e2n ch\u00ednh. V\u1eady v\u00ec sao b\u1ea1c \u0111\u1ea1n v\u00f2ng bi b\u1ecb qu\u00e1 nhi\u1ec7t? S\u1ef1 qu\u00e1 nhi\u1ec7t \u1edf b\u1ea1c \u0111\u1ea1n v\u00f2ng… Xem b\u00e0i vi\u1ebft<\/a><\/p>\n","protected":false},"author":3,"featured_media":6248372,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ep_exclude_from_search":false,"footnotes":""},"categories":[2542],"tags":[],"class_list":["post-6248371","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bac-dan-vong-bi"],"acf":[],"_links":{"self":[{"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/posts\/6248371","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/comments?post=6248371"}],"version-history":[{"count":2,"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/posts\/6248371\/revisions"}],"predecessor-version":[{"id":14305174,"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/posts\/6248371\/revisions\/14305174"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/media\/6248372"}],"wp:attachment":[{"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/media?parent=6248371"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/categories?post=6248371"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/tags?post=6248371"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}