B\u00eat\u00f4ng l\u00e0 m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng quan tr\u1ecdng th\u01b0\u1eddng d\u00f9ng, n\u00f3 \u0111\u01b0\u1ee3c tr\u1ed9n b\u1eb1ng xi m\u0103ng, c\u00e1t v\u00e0 \u0111\u00e1 theo m\u1ed9t t\u1ef7 l\u1ec7 nh\u1ea5t \u0111\u1ecbnh, r\u1ed3i \u0111\u1ed5 v\u00e0o v\u00e1n khu\u00f4n c\u00f3 h\u00ecnh d\u00e1ng v\u00e0 k\u00edch th\u01b0\u1edbc nh\u1ea5t \u0111\u1ecbnh theo y\u00eau c\u1ea7u s\u1eed d\u1ee5ng, sau \u0111\u00f3 d\u00f9ng m\u00e1y \u0111\u1ea7m \u0111\u1ec3 \u0111\u1ea7m cho \u0111\u1eb7c s\u00edt, n\u00f3i chung sau kho\u1ea3ng 28 ng\u00e0y, m\u1ed7i cm2 b\u00eat\u00f4ng c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c l\u1ef1c n\u00e9n 2000-4000 N (N – niut\u01a1n \u0111\u01a1n, v\u1ecb l\u1ef1c – ND) t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi \u0111\u1ed9 r\u1eafn c\u1ee7a \u0111\u00e1 c\u1ee9ng.<\/p>\n\n\n\n
Tuy nhi\u00ean, kh\u1ea3 n\u0103ng ch\u1ecbu k\u00e9o c\u1ee7a b\u00eat\u00f4ng r\u1ea5t k\u00e9m, ch\u1ec9 b\u1eb1ng 1\/10 kh\u1ea3 n\u0103ng ch\u1ecbu n\u00e9n, ngh\u0129a l\u00e0 m\u1ed7i cm2 ch\u1ec9 ch\u1ecbu \u0111\u01b0\u1ee3c l\u1ef1c k\u00e9o tr\u00ean d\u01b0\u1edbi 100-200 N. N\u1ebfu d\u00f9ng b\u00eat\u00f4ng \u0111\u1ec3 l\u00e0m c\u00e1c d\u1ea7m ngang c\u1ee7a v\u1eadt ki\u1ebfn tr\u00fac th\u00ec ph\u1ea7n ch\u1ecbu n\u00e9n \u1edf ph\u00eda tr\u00ean n\u00f3i chung kh\u00f4ng b\u1ecb ph\u00e1 h\u1ecfng, nh\u01b0ng ph\u1ea7n ch\u1ecbu k\u00e9o \u1edf ph\u00eda d\u01b0\u1edbi th\u00ec r\u1ea5t c\u00f3 kh\u1ea3 n\u0103ng xu\u1ea5t hi\u1ec7n nh\u1eefng v\u1ebft n\u1ee9t, \u0111\u1ebfn m\u1ee9c l\u00e0m g\u00e3y c\u1ea3 d\u1ea7m.<\/p>\n\n\n\n
\u0110\u1ec3 l\u00e0m t\u0103ng kh\u1ea3 n\u0103ng ch\u1ecbu k\u00e9o c\u1ee7a b\u00eat\u00f4ng, ph\u00e1t huy t\u00ednh \u01b0u vi\u1ec7t v\u1ec1 s\u1ee9c ch\u1ecbu n\u00e9n, c\u00f3 th\u1ec3 \u0111\u1eb7t c\u1ed1t th\u00e9p v\u00e0o d\u1ea7m b\u00eat\u00f4ng. C\u1ed1t th\u00e9p l\u00e0 m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu k\u00e9o r\u1ea5t l\u1edbn, tr\u00ean m\u1ed7i cm2 c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c l\u1ef1c k\u00e9o 24.000 -60.000 N, kh\u1ea3 n\u0103ng ch\u1ecbu k\u00e9o c\u1ee7a lo\u1ea1i th\u00e9p c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 cao l\u1ea1i c\u00e0ng l\u1edbn, do \u0111\u00f3 c\u00f3 th\u1ec3 d\u00f9ng n\u00f3 \u0111\u1ec3 thay th\u1ebf s\u1ee9c ch\u1ecbu k\u00e9o c\u1ee7a b\u00eat\u00f4ng. Lo\u1ea1i v\u1eadt li\u1ec7u ph\u1ee9c h\u1ee3p n\u00e0y g\u1ecdi l\u00e0 b\u00eat\u00f4ng c\u1ed1t th\u00e9p.<\/p>\n\n\n\n
S\u1edf d\u0129 b\u00eat\u00f4ng v\u00e0 c\u1ed1t th\u00e9p c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p v\u1edbi nhau, ph\u00e1t huy t\u00e1c d\u1ee5ng ch\u1ecbu n\u00e9n v\u00e0 ch\u1ed1ng k\u00e9o, ch\u1ee7 y\u1ebfu l\u00e0 do h\u1ec7 s\u1ed1 gi\u00e3n n\u1edf nhi\u1ec7t c\u1ee7a ch\u00fang r\u1ea5t gi\u1ed1ng nhau. B\u1ea5t c\u1ee9 v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng n\u00e0o c\u0169ng \u0111\u1ec1u ph\u1ea3i ch\u1ecbu \u0111\u1ef1ng nhi\u1ec7t \u0111\u1ed9 n\u00f3ng b\u1ee9c m\u00f9a h\u00e8 v\u00e0 gi\u00e1 l\u1ea1nh m\u00f9a \u0111\u00f4ng, c\u00e1c v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng c\u0169ng ph\u1ea3i tr\u1ea3i qua s\u1ef1 kh\u1ea3o nghi\u1ec7m c\u1ee7a nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 nhi\u1ec7t \u0111\u1ed9 th\u1ea5p. C\u00e1c v\u1eadt li\u1ec7u \u0111\u1ec1u c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m g\u1eb7p n\u00f3ng th\u00ec n\u1edf ra, g\u1eb7p l\u1ea1nh th\u00ec co l\u1ea1i, m\u00e0 m\u1ed7i lo\u1ea1i v\u1eadt li\u1ec7u sau khi ch\u1ecbu nhi\u1ec7t, m\u1ee9c \u0111\u1ed9 gi\u00e3n n\u1edf c\u1ee7a ch\u00fang c\u0169ng kh\u00e1c nhau, t\u1ef7 s\u1ed1 gi\u1eefa chi\u1ec1u d\u00e0i gi\u00e3n ra v\u00e0 chi\u1ec1u d\u00e0i ban \u0111\u1ea7u g\u1ecdi l\u00e0 “h\u1ec7 s\u1ed1 gi\u00e3n n\u1edf”. H\u1ec7 s\u1ed1 gi\u00e3n n\u1edf c\u1ee7a th\u00e9p l\u00e0 0,000012, c\u1ee7a b\u00eat\u00f4ng l\u00e0 0,000010 ~ 0,000014, \u0111i\u1ec1u \u0111\u00f3 khi\u1ebfn cho ch\u00fang c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p ch\u1eb7t ch\u1ebd v\u1edbi nhau khi nhi\u1ec7t \u0111\u1ed9 thay \u0111\u1ed5i.<\/p>\n\n\n\n
Khi c\u00e1c d\u1ea7m b\u00eat\u00f4ng c\u1ed1t th\u00e9p ch\u1ecbu s\u1ee9c n\u00e9n l\u1edbn c\u1ee7a ngo\u1ea1i l\u1ef1c, l\u1ef1c k\u00e9o s\u1ea3n sinh ra \u1edf trong m\u1eb7t c\u1eaft ngang l\u00e0 \u1edf ph\u00eda d\u01b0\u1edbi c\u1ee7a d\u1ea7m, v\u00ec v\u1eady c\u00e1c c\u1ed1t th\u00e9p c\u1ea7n \u0111\u1eb7t \u1edf g\u1ea7n m\u00e9p \u1edf hai b\u00ean ph\u00eda d\u01b0\u1edbi d\u1ea7m, nh\u01b0 v\u1eady d\u1ea7m b\u00eat\u00f4ng c\u1ed1t th\u00e9p m\u1edbi c\u00f3 th\u1ec3 ch\u1ecbu s\u1ee9c n\u00e9n c\u1ee7a tr\u1ecdng l\u1ef1c. C\u00f3 tr\u01b0\u1eddng h\u1ee3p, \u1edf m\u1eb7t tr\u00ean c\u1ee7a d\u1ea7m, c\u0169ng c\u00f3 c\u1ed1t th\u00e9p, nh\u01b0ng \u0111i\u1ec1u \u0111\u00f3 ch\u1ec9 d\u00f9ng \u0111\u1ec3 duy tr\u00ec t\u00ednh ho\u00e0n ch\u1ec9nh \u0111\u1ed3ng \u0111\u1ec1u c\u1ee7a c\u1ed1t th\u00e9p b\u00ean trong d\u1ea7m m\u00e0 th\u00f4i, b\u1ea3n th\u00e2n n\u00f3 kh\u00f4ng ph\u1ea3i ch\u1ecbu l\u1ef1c k\u00e9o \u0111\u00e1ng k\u1ec3.<\/p>\n\n\n\n
T\u1eeb kh\u00f3a: C\u1ed1t th\u00e9p; H\u1ec7 s\u1ed1 gi\u00e3n n\u1edf.<\/p>\n","protected":false},"excerpt":{"rendered":"
B\u00eat\u00f4ng l\u00e0 m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng quan tr\u1ecdng th\u01b0\u1eddng d\u00f9ng, n\u00f3 \u0111\u01b0\u1ee3c tr\u1ed9n b\u1eb1ng xi m\u0103ng, c\u00e1t v\u00e0 \u0111\u00e1 theo m\u1ed9t t\u1ef7 l\u1ec7 nh\u1ea5t \u0111\u1ecbnh, r\u1ed3i \u0111\u1ed5 v\u00e0o v\u00e1n khu\u00f4n c\u00f3 h\u00ecnh d\u00e1ng v\u00e0 k\u00edch th\u01b0\u1edbc nh\u1ea5t \u0111\u1ecbnh theo y\u00eau c\u1ea7u s\u1eed d\u1ee5ng, sau \u0111\u00f3 d\u00f9ng m\u00e1y \u0111\u1ea7m \u0111\u1ec3 \u0111\u1ea7m cho \u0111\u1eb7c s\u00edt, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15,16],"tags":[],"class_list":["post-8975","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-ky-thuat"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8975","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=8975"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8975\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=8975"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=8975"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=8975"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}