M\u00e1y gia nhi\u1ec7t c\u1ea3m \u1ee9ng t\u1ea7n s\u1ed1 cao ho\u1ea1t \u0111\u1ed9ng theo nguy\u00ean l\u00fd c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb, v\u1edbi d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u ch\u1ea1y qua cu\u1ed9n d\u00e2y c\u1ea3m \u1ee9ng. \u0110i\u1ec1u n\u00e0y khi\u1ebfn n\u00f3 t\u1ea1o ra m\u1ed9t t\u1eeb tr\u01b0\u1eddng xoay chi\u1ec1u c\u1eaft c\u00e1c b\u1ed9 ph\u1eadn kim lo\u1ea1i, g\u00e2y ra d\u00f2ng \u0111i\u1ec7n xo\u00e1y trong c\u00e1c b\u1ed9 ph\u1eadn \u0111\u1ec3 t\u1ea1o ra nhi\u1ec7t. T\u1ea7n s\u1ed1 c\u1ee7a m\u00e1y gia nhi\u1ec7t c\u1ea3m \u1ee9ng HF n\u1eb1m trong kho\u1ea3ng t\u1eeb 30 \u0111\u1ebfn 80 kHz. N\u00f3 c\u0169ng c\u00f3 \u0111\u1ed9 s\u00e2u gia nhi\u1ec7t t\u1eeb 0,5-2,5 mm v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gia nhi\u1ec7t c\u00e1c b\u1ed9 ph\u1eadn c\u00f3 k\u00edch th\u01b0\u1edbc nh\u1ecf v\u00e0 v\u1eeba. <\/p>\n","protected":false},"excerpt":{"rendered":"
M\u00e1y gia nhi\u1ec7t c\u1ea3m \u1ee9ng t\u1ea7n s\u1ed1 cao ho\u1ea1t \u0111\u1ed9ng theo nguy\u00ean l\u00fd c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb, v\u1edbi d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u ch\u1ea1y qua cu\u1ed9n d\u00e2y c\u1ea3m \u1ee9ng. \u0110i\u1ec1u n\u00e0y […]<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"footnotes":""},"faq_category":[324],"class_list":["post-12581","avada_faq","type-avada_faq","status-publish","format-standard","hentry","faq_category-cau-hoi-thuong-gap-ve-may-gia-nhiet-cam-ung-tan-so-cao"],"_links":{"self":[{"href":"https:\/\/www.focoinduction.com\/vi\/wp-json\/wp\/v2\/avada_faq\/12581","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.focoinduction.com\/vi\/wp-json\/wp\/v2\/avada_faq"}],"about":[{"href":"https:\/\/www.focoinduction.com\/vi\/wp-json\/wp\/v2\/types\/avada_faq"}],"author":[{"embeddable":true,"href":"https:\/\/www.focoinduction.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.focoinduction.com\/vi\/wp-json\/wp\/v2\/comments?post=12581"}],"version-history":[{"count":0,"href":"https:\/\/www.focoinduction.com\/vi\/wp-json\/wp\/v2\/avada_faq\/12581\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.focoinduction.com\/vi\/wp-json\/wp\/v2\/media?parent=12581"}],"wp:term":[{"taxonomy":"faq_category","embeddable":true,"href":"https:\/\/www.focoinduction.com\/vi\/wp-json\/wp\/v2\/faq_category?post=12581"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}