{"id":2944,"date":"2023-02-27T10:25:11","date_gmt":"2023-02-27T03:25:11","guid":{"rendered":"https:\/\/amthanhxua.com\/?p=2944"},"modified":"2023-02-27T10:38:17","modified_gmt":"2023-02-27T03:38:17","slug":"amply-den-va-loa-toan-dai-huong-choi-hoai-co","status":"publish","type":"post","link":"https:\/\/amthanhxua.com\/amply-den-va-loa-toan-dai-huong-choi-hoai-co\/","title":{"rendered":"Amply \u0111\u00e8n th\u00fa ch\u01a1i ho\u00e0i c\u1ed5"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"2944\" class=\"elementor elementor-2944\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d53cf41 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d53cf41\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-28b911b\" data-id=\"28b911b\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-b60dd06 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b60dd06\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-7d5f91d\" data-id=\"7d5f91d\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e72fd92 elementor-widget elementor-widget-text-editor\" data-id=\"e72fd92\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.11.0 - 13-02-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#818a91;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#818a91;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p>T\u1eeb nh\u1eefng ph\u00e1t minh v\u0129 \u0111\u1ea1i trong th\u1ebf k\u1ef7 20 v\u1ec1 khoa h\u1ecdc n\u00f3i chung v\u00e0 khoa h\u1ecdc k\u1ef9 thu\u1eadt \u0111i\u1ec7n t\u1eed n\u00f3i ri\u00eang, c\u00e1c nh\u00e0 khoa h\u1ecdc, k\u0129 s\u01b0 \u0111\u00e3 t\u1ea1o n\u00ean nh\u1eefng thi\u1ebft b\u1ecb nghe nh\u00ecn t\u1eeb \u0111\u01a1n gi\u1ea3n nh\u01b0 radio, m\u00e1y truy\u1ec1n ph\u00e1t t\u00edn hi\u1ec7u v\u00e0 cho \u0111\u1ebfn nay ch\u00fang ta \u0111\u00e3 c\u00f3 c\u1ea3 nh\u1eefng h\u1ec7 th\u1ed1ng thi\u1ebft b\u1ecb nghe nh\u00ecn \u0111\u01b0\u1ee3c m\u1ec7nh danh l\u00e0 r\u1ea1p h\u00e1t t\u1ea1i gia. Tuy nhi\u00ean, s\u1ef1 ph\u00e1t tri\u1ec3n \u0111a d\u1ea1ng c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb \u00e2m thanh c\u0169ng g\u00f3p ph\u1ea7n t\u1ea1o ra nhi\u1ec1u xu h\u01b0\u1edbng ch\u01a1i audio kh\u00e1c nhau, v\u00ed d\u1ee5 nh\u01b0 ch\u1ea1y \u0111ua theo c\u00f4ng ngh\u1ec7 ho\u1eb7c ho\u00e0i c\u1ed5.<\/p><p>\u00a0C\u00f3 th\u1ec3 n\u00f3i Amply \u0111\u00e8n v\u00e0 loa to\u00e0n d\u1ea3i c\u1ed5 c\u1ee7a \u0110\u1ee9c v\u00e0 m\u1ed9t s\u1ed1 n\u01b0\u1edbc ch\u00e2u \u00e2u s\u1ea3n xu\u1ea5t l\u00e0 nh\u1eefng c\u1eb7p \u0111\u00f4i ho\u00e0n h\u1ea3o mang t\u00ednh ch\u1ea5t hiend cho h\u00e0nh tr\u00ecnh t\u00ecm ki\u1ebfm \u00e2m thanh trung th\u1ef1c quy\u1ebfn r\u0169, mang \u0111\u1ea7y c\u00e1 t\u00ednh.<\/p><p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter\" src=\"https:\/\/khang-audio.com\/asset\/upload\/bai_viet_blog\/amply_en_va_loa_toan_di_hng_chi_hoai_c_ca_khang_audio\/IMG_6471.JPG\" alt=\"amply \u0111\u00e8n b\u00f3ng \u0111\u1ed1t d\u00e1n ti\u1ebfp el84 khang audio diy\" width=\"5184\" height=\"3456\" \/><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-b86edfc elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b86edfc\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-1a385c1\" data-id=\"1a385c1\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4507652 elementor-widget elementor-widget-text-editor\" data-id=\"4507652\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h4><strong>Amply \u0111\u00e8n<\/strong><\/h4><p>N\u0103m 1906, b\u00f3ng \u0111\u00e8n 3 c\u1ef1c (triode) xu\u1ea5t hi\u1ec7n, kh\u1edfi ngu\u1ed3n cho th\u1eddi ho\u00e0ng kim c\u1ee7a ampli \u0111\u00e8n. N\u0103m 20, 30 v\u1edbi ki\u1ec3u \u0111\u00e8n s\u1ee3i \u0111\u1ed1t tr\u1ef1c ti\u1ebfp, kh\u00f4ng c\u00f3 m\u1ea1ch h\u1ed3i ti\u1ebfp, c\u00f3 nhi\u1ec1u bi\u1ebfn \u00e1p c\u00e1c lo\u1ea1i, c\u00f4ng su\u1ea5t th\u1ea5p, \u0111\u1ed9 m\u00e9o cao \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e1t minh v\u00e0 ra \u0111\u1eddi. M\u1eb7c d\u00f9 m\u1ea1ch \u0111\u1ea9y k\u00e9o ra \u0111\u1eddi v\u00e0o n\u0103m 1916 nh\u01b0ng m\u00e3i g\u1ea7n hai th\u1eadp k\u1ef7 sau n\u00f3 m\u1edbi th\u1ef1c s\u1ef1 \u0111i v\u00e0o cu\u1ed9c s\u1ed1ng. N\u0103m 1927 Vi\u1ec7c ph\u00e1t minh ra k\u1ef9 thu\u1eadt h\u1ed3i ti\u1ebfp \u00e2m (negative feedback) c\u1ee7a Harold Black v\u00e0o \u0111\u00e3 h\u00ecnh th\u00e0nh n\u00ean c\u00e1c m\u1ea1ch \u0111i\u1ec7n tinh vi v\u1edbi kh\u1ea3 n\u0103ng gi\u1ea3m \u0111\u1ed9 m\u00e9o trong ampli xu\u1ed1ng \u0111\u00e1ng k\u1ec3. Thi\u1ebft k\u1ebf ampli \u0111\u00e8n l\u00e0 m\u1ea1ch \u0111\u1ea9y k\u00e9o (push &#8211; pull) \u1edf t\u1ea7ng c\u00f4ng su\u1ea5t, t\u1ee9c l\u00e0 m\u00f4 h\u00ecnh c\u00f3 hai \u0111\u00e8n c\u00f4ng su\u1ea5t thay nhau m\u1edf v\u00e0 t\u1eaft gi\u00fap t\u0103ng c\u01b0\u1eddng hi\u1ec7u su\u1ea5t c\u1ee7a t\u1ea7ng ra, cho ph\u00e9p ch\u1ebf t\u1ea1o ampli c\u00f4ng su\u1ea5t cao h\u01a1n m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng.<br \/>\u0110\u1ea7u nh\u1eefng n\u0103m 30, khi c\u00e1c ampli \u0111i\u1ec7n t\u1eed, m\u00e1y h\u00e1t, tuner \u0111\u00e8n \u2026 ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c c\u1ea3i ti\u1ebfn v\u00e0 n\u00e2ng cao \u0111\u1ed9 trung th\u1ef1c th\u00ec th\u00fa ch\u01a1i ampli \u0111\u00e8n b\u1eaft \u0111\u1ea7u n\u1edf r\u1ed9. Thi\u1ebft b\u1ecb \u00e2m thanh th\u1eddi \u0111\u00f3 \u0111\u1ec1u c\u1ef1c \u0111\u1eaft n\u1ebfu so s\u00e1nh v\u1edbi c\u00e1c ti\u00eau chu\u1ea9n ng\u00e0y nay n\u00ean nh\u1eefng s\u1ea3n ph\u1ea9m t\u1ed1t ch\u1ec9 thu\u1ed9c v\u1ec1 nh\u1eefng ng\u01b0\u1eddi gi\u00e0u c\u00f3 v\u00e0 th\u1ef1c s\u1ef1 \u0111am m\u00ea \u00e2m thanh. B\u00e1n ch\u1ea1y nh\u1ea5t khi \u1ea5y l\u00e0 c\u00e1c b\u1ed9 ampli v\u00e0 loa to\u00e0n d\u1ea3i c\u00f9ng v\u1edbi c\u00e1c cu\u1ed1n s\u00e1ch tr\u00ecnh b\u00e0y chi ti\u1ebft v\u1ec1 c\u00e1c thi\u1ebft k\u1ebf. Ch\u00fang \u0111\u00e3 g\u00f3p ph\u1ea7n t\u1ea1o n\u00ean nhi\u1ec1u \u0111\u00eam tr\u00ecnh di\u1ec5n th\u00fa v\u1ecb t\u1ea1i gia cho ng\u01b0\u1eddi y\u00eau nh\u1ea1c tr\u01b0\u1edbc khi truy\u1ec1n h\u00ecnh \u0111\u1ebfn v\u1edbi m\u1ecdi nh\u00e0.<\/p><p>\u00a0<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-ebd4513 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ebd4513\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-da1f08d\" data-id=\"da1f08d\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f939163 elementor-widget elementor-widget-image\" data-id=\"f939163\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.11.0 - 13-02-2023 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/khang-audio.com\/asset\/upload\/bai_viet_blog\/amply_en_va_loa_toan_di_hng_chi_hoai_c_ca_khang_audio\/IMG_6480.JPG\" title=\"\" alt=\"\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-083dbf2\" data-id=\"083dbf2\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4f68b8e elementor-widget elementor-widget-image\" data-id=\"4f68b8e\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/cdn.tgdd.vn\/Files\/2021\/08\/24\/1377620\/ampli-den-la-gi-bat-mi-nguyen-ly-va-cach-thuc-hoa-1.jpg\" title=\"\" alt=\"\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-546206d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"546206d\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-b716d03\" data-id=\"b716d03\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6f80dfe elementor-widget elementor-widget-text-editor\" data-id=\"6f80dfe\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h4><strong>Hai tr\u01b0\u1eddng ph\u00e1i ch\u01a1i Amply \u0111\u00e8n<\/strong><\/h4><p><strong>M\u1ed9t l\u00e0:<\/strong>\u00a0ch\u01a1i amply \u0111\u00e8n 5 c\u1ef1c \u0111\u00e8n \u0111\u1ed1t d\u00e1n ti\u1ebfp v\u1edbi m\u1ea1ch PP (m\u1ea1ch k\u00e9o \u0111\u1ea5y) c\u00f3 m\u1ea1ch h\u1ed3i ti\u1ebfp nh\u1eb1m \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u t\u1ea1o ra c\u00f4ng su\u1ea5t l\u1edbn v\u00e0 gi\u1ea3m thi\u1ec3u \u0111\u1ed9 m\u00e9o, ph\u1ed1i gh\u00e9p \u0111\u01b0\u1ee3c nhi\u1ec1u lo\u1ea1i loa \u0111\u1ed9 nh\u1eady th\u1ea5p c\u00f4ng su\u1ea5t l\u1edbn. C\u00e2p \u0111\u1ed9 th\u1ee9 hai trong nh\u00f3m n\u00e0y l\u00e0 ch\u01a1i \u0111\u00e8n 5 c\u1ef1c \u0111\u1ed1t d\u00e1n ti\u1ebfp v\u1edbi m\u1ea1ch \u0111i\u1ec7n PP nh\u01b0ng kh\u00f4ng c\u00f3 m\u1ea1ch h\u1ed3i ti\u1ebfp, cho loa \u0111\u1ed9 nh\u1ea1y cao c\u00f4ng su\u1ea5t v\u1eeba.<br \/><br \/><strong>Hai l\u00e0<\/strong>: Amply b\u00f3ng \u0111\u00e8n 3 c\u1ef1c \u0111\u1ed1t tr\u1ef1c ti\u1ebfp v\u1edbi m\u1ea1ch SE, kh\u00f4ng s\u1eed d\u1ee5ng m\u1ea1ch h\u1ed3i ti\u1ebfp nh\u1eb1m \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u t\u1ea1o ra c\u00f4ng su\u1ea5t nh\u1ecf \u0111\u00fang v\u1edbi kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u00f3ng \u0111\u00e8n, \u0111\u1ed9 m\u00e9o cao h\u01a1n m\u1ea1ch PP \u0111\u00e1p \u1ee9ng c\u00e1c \u0111\u00f4i loa c\u1ed5 \u0111\u1ed9 nh\u1ea1y cao, ho\u1eb7c loa hi\u1ec7n \u0111\u1ea1i danh ti\u1ebfng \u0111\u1ed9 nh\u1ea1y cao c\u00f4ng xu\u1ea5t nh\u1ecf. V\u1edbi d\u00f2ng amply n\u00e0y m\u1eb7c d\u00f9 c\u00f4ng su\u1ea5t amply nh\u1ecf kh\u00f4ng ph\u1ed1i gh\u00e9p \u0111\u01b0\u1ee3c nhi\u1ec1u lo\u1ea1i loa nh\u01b0 d\u00f2ng amply PP nh\u01b0ng \u00e2m thanh c\u1ee7a ch\u00fang th\u00ec r\u1ea5t quy\u1ebfn r\u0169, nh\u1eefng b\u1ea3n nh\u1ea1c \u0111\u01b0\u1ee3c tr\u00ecnh di\u1ec5n tr\u00ean h\u1ec7 th\u1ed1ng amply n\u00e0y \u0111\u1ed9 \u0111\u1ed9ng r\u1ea5t cao, v\u00e0 chi ti\u1ebft, \u0111\u01b0a ng\u01b0\u1eddi nghe tr\u1ea3i nghi\u1ec7m r\u1ea5t nhi\u1ec1u cung b\u1eadc c\u1ea3m x\u00fac.<br \/>C\u1ea3 hai xu h\u01b0\u1edbng ch\u01a1i n\u00e0y \u0111\u1ec1u di\u1ec5n ra song song m\u1ed7i h\u01b0\u1edbng \u0111\u1ec1u c\u00f3 th\u1ebf m\u1ea1nh ri\u00eang nh\u1eb1m khai th\u00e1c c\u00e1c \u0111i\u1ec3m m\u1ea1nh kh\u00e1c nhau c\u1ee7a amply b\u00f3ng \u0111\u00e8n \u0111em l\u1ea1i cho cu\u1ed9c ch\u01a1i audio.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>T\u1eeb nh\u1eefng ph\u00e1t minh v\u0129 \u0111\u1ea1i trong th\u1ebf k\u1ef7 20 v\u1ec1 khoa h\u1ecdc n\u00f3i chung v\u00e0 khoa h\u1ecdc k\u1ef9 thu\u1eadt \u0111i\u1ec7n t\u1eed n\u00f3i ri\u00eang, c\u00e1c nh\u00e0 khoa h\u1ecdc, k\u0129 s\u01b0 \u0111\u00e3 t\u1ea1o n\u00ean nh\u1eefng thi\u1ebft b\u1ecb nghe nh\u00ecn t\u1eeb \u0111\u01a1n gi\u1ea3n nh\u01b0 radio, m\u00e1y truy\u1ec1n ph\u00e1t t\u00edn hi\u1ec7u v\u00e0 cho \u0111\u1ebfn nay ch\u00fang ta \u0111\u00e3 c\u00f3 c\u1ea3 nh\u1eefng h\u1ec7 th\u1ed1ng thi\u1ebft b\u1ecb nghe nh\u00ecn \u0111\u01b0\u1ee3c m\u1ec7nh danh l\u00e0 r\u1ea1p h\u00e1t t\u1ea1i gia. Tuy nhi\u00ean, s\u1ef1 ph\u00e1t tri\u1ec3n \u0111a d\u1ea1ng c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb \u00e2m thanh c\u0169ng g\u00f3p ph\u1ea7n t\u1ea1o ra nhi\u1ec1u xu h\u01b0\u1edbng ch\u01a1i audio kh\u00e1c nhau, v\u00ed d\u1ee5 nh\u01b0\u2026<\/p>\n","protected":false},"author":1,"featured_media":1092,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[110],"tags":[],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":5}},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Amply \u0111\u00e8n th\u00fa ch\u01a1i ho\u00e0i c\u1ed5 - \u00c2m Thanh X\u01b0a - Ho\u00e0i Ni\u1ec7m C\u0169<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/amthanhxua.com\/amply-den-va-loa-toan-dai-huong-choi-hoai-co\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Amply \u0111\u00e8n th\u00fa ch\u01a1i ho\u00e0i c\u1ed5 - \u00c2m Thanh X\u01b0a - Ho\u00e0i Ni\u1ec7m C\u0169\" \/>\n<meta property=\"og:description\" content=\"T\u1eeb nh\u1eefng ph\u00e1t minh v\u0129 \u0111\u1ea1i trong th\u1ebf k\u1ef7 20 v\u1ec1 khoa h\u1ecdc n\u00f3i chung v\u00e0 khoa h\u1ecdc k\u1ef9 thu\u1eadt \u0111i\u1ec7n t\u1eed n\u00f3i ri\u00eang, c\u00e1c nh\u00e0 khoa h\u1ecdc, k\u0129 s\u01b0 \u0111\u00e3 t\u1ea1o n\u00ean nh\u1eefng thi\u1ebft b\u1ecb nghe nh\u00ecn t\u1eeb \u0111\u01a1n gi\u1ea3n nh\u01b0 radio, m\u00e1y truy\u1ec1n ph\u00e1t t\u00edn hi\u1ec7u v\u00e0 cho \u0111\u1ebfn nay ch\u00fang ta \u0111\u00e3 c\u00f3 c\u1ea3 nh\u1eefng h\u1ec7 th\u1ed1ng thi\u1ebft b\u1ecb nghe nh\u00ecn \u0111\u01b0\u1ee3c m\u1ec7nh danh l\u00e0 r\u1ea1p h\u00e1t t\u1ea1i gia. 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