{"id":10462,"date":"2021-11-21T20:06:11","date_gmt":"2021-11-21T13:06:11","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=10462"},"modified":"2021-11-22T17:16:23","modified_gmt":"2021-11-22T10:16:23","slug":"tai-sao-gia-dinh-nguoi-may-lai-co-hinh-thu-khac-nhau","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/tai-sao-gia-dinh-nguoi-may-lai-co-hinh-thu-khac-nhau\/","title":{"rendered":"T\u1ea1i sao gia \u0111\u00ecnh ng\u01b0\u1eddi m\u00e1y l\u1ea1i c\u00f3 h\u00ecnh th\u00f9 kh\u00e1c nhau?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Khi ta ti\u1ebfp x\u00fac v\u1edbi ng\u01b0\u1eddi m\u00e1y th\u00ec s\u1ebd ph\u00e1t hi\u1ec7n ra l\u00e0 ng\u01b0\u1eddi m\u00e1y trong cu\u1ed9c s\u1ed1ng hi\u1ec7n th\u1ef1c th\u1ef1c ra ch\u1eb3ng gi\u1ed1ng ng\u01b0\u1eddi ch\u00fat n\u00e0o, d\u00f9 cho c\u00f3 nh\u1eefng ng\u01b0\u1eddi m\u00e1y \u0111\u01b0\u1ee3c <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">thi\u1ebft k\u1ebf<\/a> \u0111\u1eb7c bi\u1ec7t th\u00e0nh h\u00ecnh d\u00e1ng c\u1ee7a ng\u01b0\u1eddi th\u00ec c\u0169ng ch\u1ec9 \u0111\u1ec3 vui ch\u01a1i v\u00e0 cho vi\u1ec7c nghi\u00ean c\u1ee9u n\u00e0o \u0111\u00f3 th\u00f4i. Ng\u01b0\u1eddi M\u0129 t\u1eebng ch\u1ebf t\u1ea1o ra m\u1ed9t ng\u01b0\u1eddi m\u00e1y m\u00f4 ph\u1ecfng ng\u01b0\u1eddi r\u1ed3i cho n\u00f3 b\u1eaft ch\u01b0\u1edbc danh ca nam cao Pavaroti \u0111\u1ec3 t\u1ed5 ch\u1ee9c nh\u1ea1c h\u1ed9i l\u00e0m l\u1eabn l\u1ed9n th\u1ef1c gi\u1ea3. N\u00f3 l\u1ea1i v\u1eeba bi\u1ebft h\u00e1t l\u1ea1i c\u0169ng bi\u1ebft tr\u00f2 chuy\u1ec7n chuy\u00ean m\u00f4n v\u00e0 \u0111\u00e3 \u0111\u01b0\u1ee3c v\u1ed7 tay hoan ngh\u00eanh. Th\u1ebf nh\u01b0ng, trong \u0111\u1ea1o qu\u00e2n ng\u01b0\u1eddi m\u00e1y c\u00f3 h\u01a1n 60 v\u1ea1n chi\u1ebfc ng\u00e0y nay, ng\u01b0\u1eddi m\u00e1y th\u1ef1c s\u1ef1 gi\u1ed1ng ng\u01b0\u1eddi r\u1ea5t \u00edt. V\u00ed d\u1ee5 r\u1ea5t nhi\u1ec1u ng\u01b0\u1eddi m\u00e1y c\u00f4ng nghi\u1ec7p \u0111\u1ec1u l\u00e0 ki\u1ec3u c\u00e1nh tay \u0111\u01a1n, nh\u1eefng ng\u01b0\u1eddi m\u00e1y tr\u00e8o t\u01b0\u1eddng d\u00f9ng \u0111\u1ec3 ki\u1ec3m tra th\u00ec l\u1ea1i gi\u1ed1ng v\u1edbi b\u1ecd c\u00e1nh c\u1ee9ng; nh\u1eefng ng\u01b0\u1eddi m\u00e1y trinh s\u00e1t v\u00e0 tho\u00e1t hi\u1ec3m l\u1ea1i gi\u1ed1ng c\u1ed7 xe c\u00f4ng tr\u00ecnh; ng\u01b0\u1eddi m\u00e1y c\u00f3 th\u1ec3 chui v\u00e0o \u0111\u01b0\u1eddng \u1ed1ng d\u1eabn ga th\u00ec gi\u1ed1ng v\u1edbi con r\u1eafn\u2026 Ng\u01b0\u1eddi m\u00e1y kh\u00f4ng ch\u1ec9 h\u00ecnh d\u00e1ng kh\u00e1c nhau m\u00e0 to nh\u1ecf c\u0169ng kh\u00e1c nhau. Lo\u1ea1i to th\u00ec s\u1ea3i tay d\u00e0i m\u1ea5y ch\u1ee5c m\u00e9t, lo\u1ea1i nh\u1ecf th\u00ec ch\u1ec9 cao kh\u00f4ng \u0111\u1ebfn 1 mm. Ngo\u00e0i ra, ch\u1ee9c n\u0103ng c\u1ee7a ng\u01b0\u1eddi m\u00e1y c\u0169ng kh\u00e1c nhau. M\u1ed9t s\u1ed1 ng\u01b0\u1eddi m\u00e1y kh\u00f4ng c\u00f3 b\u1ea5t c\u1ee9 c\u1ea3m gi\u00e1c n\u00e0o, ch\u1ec9 c\u00f3 th\u1ec3 l\u00e0m l\u1eb7p \u0111i l\u1eb7p l\u1ea1i m\u1ed9t c\u00e1ch l\u1eb7ng l\u1ebd, c\u00f2n m\u1ed9t s\u1ed1 kh\u00e1c l\u1ea1i c\u00f3 &#8220;m\u1eaft&#8221;, c\u00f3 &#8220;tai&#8221; c\u00f3 th\u1ec3 l\u00e0m vi\u1ec7c m\u00e0 con ng\u01b0\u1eddi kh\u00f4ng th\u1ec3, c\u00f2n c\u00f3 nh\u1eefng ng\u01b0\u1eddi m\u00e1y \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb v\u1eadt li\u1ec7u \u0111\u1eb7c bi\u1ec7t, c\u00f3 c\u00e1c bi\u1ec3u c\u1ea3m tr\u00ean m\u1eb7t kh\u00e1c nhau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ea1i sao trong gia \u0111\u00ecnh ng\u01b0\u1eddi m\u00e1y l\u1ea1i c\u00f3 t\u00ecnh tr\u1ea1ng h\u00ecnh d\u00e1ng kh\u00e1c nhau nh\u01b0 v\u1eady? \u0110\u00f3 l\u00e0 v\u00ec h\u00ecnh d\u00e1ng tr\u1ea1ng th\u00e1i c\u1ee7a ng\u01b0\u1eddi m\u00e1y \u0111\u01b0\u1ee3c <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">thi\u1ebft k\u1ebf<\/a> cho nhu c\u1ea7u t\u00e1c nghi\u1ec7p. Tho\u1ea1t ti\u00ean ng\u01b0\u1eddi m\u00e1y l\u00e0m ra ch\u1ec9 h\u1ea1n ch\u1ebf b\u1edfi suy ngh\u0129 t\u1ef1 \u0111\u1ed9ng ho\u00e1, ch\u1ee7 y\u1ebfu d\u00f9ng ch\u00fang \u0111\u1ec3 thay cho s\u1ee9c lao \u0111\u1ed9ng c\u1ee7a con ng\u01b0\u1eddi. V\u1ec1 sau, c\u00f9ng v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n kh\u00f4ng ng\u1eebng c\u1ee7a khoa h\u1ecdc k\u1ef9 thu\u1eadt, ng\u01b0\u1eddi ta \u0111\u00e3 li\u00ean t\u1ee5c nghi\u00ean c\u1ee9u v\u00e0 khai ph\u00e1 ra lo\u1ea1i ng\u01b0\u1eddi m\u00e1y v\u1edbi nhi\u1ec1u c\u00f4ng d\u1ee5ng \u0111\u1ec3 ch\u00fang l\u00e0m nh\u1eefng vi\u1ec7c m\u00e0 tr\u01b0\u1edbc m\u1eaft con ng\u01b0\u1eddi c\u00f2n kh\u00f3 ho\u1eb7c ch\u01b0a l\u00e0m \u0111\u01b0\u1ee3c, th\u1eadm ch\u00ed l\u00e0 nh\u1eefng t\u00e1c nghi\u1ec7p c\u00f3 m\u1ee9c \u0111\u1ed9 nguy hi\u1ec3m cao. Nh\u1eefng vi\u1ec7c n\u00e0y theo k\u1ef9 thu\u1eadt th\u00ec g\u1ecdi l\u00e0 &#8220;t\u00e1c nghi\u1ec7p gi\u1edbi h\u1ea1n cao&#8221;. V\u00ed d\u1ee5 t\u00e1c nghi\u1ec7p \u1edf bi\u1ec3n s\u00e2u m\u1ea5y ng\u00e0n m\u00e9t, t\u00e1c nghi\u1ec7p ki\u1ec3m tra v\u00e0 duy tu trong nh\u00e0 m\u00e1y \u0111i\u1ec7n nguy\u00ean t\u1eed, th\u0103m d\u00f2 v\u0169 tr\u1ee5 v\u00e0 sao ho\u1ea3, chui v\u00e0o c\u01a1 th\u1ec3 ng\u01b0\u1eddi \u0111\u1ec3 c\u1eaft b\u1ecf m\u1ea7m b\u1ec7nh, ti\u1ebfn h\u00e0nh \u0111\u1ed1i kh\u00e1ng qu\u00e2n s\u1ef1. B\u1edfi v\u1eady, ph\u1ea3i c\u0103n c\u1ee9 v\u00e0o c\u00e1c y\u00eau c\u1ea7u c\u00f4ng t\u00e1c kh\u00e1c nhau m\u00e0 <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">thi\u1ebft k\u1ebf<\/a> ra ng\u01b0\u1eddi m\u00e1y c\u00f3 h\u00ecnh d\u1ea1ng kh\u00e1c nhau. V\u00ed d\u1ee5 ng\u01b0\u1eddi m\u00e1y d\u00f9ng cho vi\u1ec7c ki\u1ec3m tra \u0111\u01b0\u1eddng \u1ed1ng nh\u1ecf h\u1eb9p th\u00ec ph\u1ea3i <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">thi\u1ebft k\u1ebf<\/a> t\u1ef1a nh\u01b0 con r\u1eafn, c\u00f3 th\u1ec3 tr\u01b0\u1eddn b\u00f2 m\u00e0 ti\u1ebfn. Ng\u01b0\u1eddi m\u00e1y d\u00f9ng \u0111\u1ec3 trinh s\u00e1t d\u00e3 ngo\u1ea1i ph\u1ea3i <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">thi\u1ebft k\u1ebf<\/a> th\u00e0nh lo\u1ea1i nhi\u1ec1u ch\u00e2n, c\u00f3 th\u1ec3 v\u01b0\u1ee3t qua v\u1eadt c\u1ea3n v\u00e0 gi\u1eef \u0111\u01b0\u1ee3c \u1ed5n \u0111\u1ecbnh\u2026<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ng\u01b0\u1eddi m\u00e1y mu\u00f4n h\u00ecnh mu\u00f4n v\u1ebb, v\u1eadt li\u1ec7u ch\u1ebf t\u1ea1o ra n\u00f3, ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u khi\u1ec3n n\u00f3 \u0111\u01b0\u01a1ng nhi\u00ean c\u0169ng kh\u00e1c nhau xa. V\u00ed d\u1ee5 nh\u1eefng ng\u01b0\u1eddi m\u00e1y t\u00ed hon d\u00f9ng cho th\u1ef1c nghi\u1ec7m v\u00e0 l\u00e2m s\u00e0ng y h\u1ecdc th\u00ec \u0111\u01b0\u1ee3c c\u1ea5y n\u1ed1i tr\u00ean t\u1ea5m silic. Vi\u1ec7c nghi\u00ean c\u1ee9u v\u00e0 ch\u1ebf t\u1ea1o ng\u01b0\u1eddi m\u00e1y th\u1ef1c ra l\u00e0 m\u1ed9t s\u1ef1 li\u00ean k\u1ebft k\u1ef9 thu\u1eadt cao ti\u00ean ti\u1ebfn nh\u1ea5t c\u1ee7a \u0111\u01b0\u01a1ng \u0111\u1ea1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1eeb kh\u00f3a: Ng\u01b0\u1eddi m\u00e1y; H\u00ecnh th\u00e1i; Ch\u1ee9c n\u0103ng; Ti\u00eau chu\u1ea9n.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Khi ta ti\u1ebfp x\u00fac v\u1edbi ng\u01b0\u1eddi m\u00e1y th\u00ec s\u1ebd ph\u00e1t hi\u1ec7n ra l\u00e0 ng\u01b0\u1eddi m\u00e1y trong cu\u1ed9c s\u1ed1ng hi\u1ec7n th\u1ef1c th\u1ef1c ra ch\u1eb3ng gi\u1ed1ng ng\u01b0\u1eddi ch\u00fat n\u00e0o, d\u00f9 cho c\u00f3 nh\u1eefng ng\u01b0\u1eddi m\u00e1y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t th\u00e0nh h\u00ecnh d\u00e1ng c\u1ee7a ng\u01b0\u1eddi th\u00ec c\u0169ng ch\u1ec9 \u0111\u1ec3 vui ch\u01a1i v\u00e0 cho vi\u1ec7c nghi\u00ean c\u1ee9u n\u00e0o [&hellip;]<\/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":[15,13],"tags":[],"class_list":["post-10462","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-tin-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/10462","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=10462"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/10462\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=10462"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=10462"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=10462"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}