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<\/p>\n1. Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u00ecnh n\u01b0\u1edbc gi\u1eef nhi\u1ec7t l\u00e0 g\u00ec?<\/p>\n
Th\u00e0nh b\u00ecnh \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o t\u1eeb hai l\u1edbp, \u1edf gi\u1eefa hai l\u1edbp l\u00e0 l\u1edbp ch\u00e2n kh\u00f4ng (ch\u00e2n kh\u00f4ng kh\u00f4ng d\u1eabn nhi\u1ec7t), t\u1ee9c l\u00e0 d\u00f9ng ch\u00e2n kh\u00f4ng \u0111\u1ec3 c\u00e1ch ly n\u01b0\u1edbc n\u00f3ng v\u1edbi m\u00f4i tr\u01b0\u1eddng b\u00ean ngo\u00e0i, \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c \u0111\u00edch c\u00e1ch nhi\u1ec7t.<\/p>\n
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2. B\u00ecnh n\u01b0\u1edbc gi\u1eef nhi\u1ec7t c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m g\u00ec?<\/p>\n
H\u00ecnh d\u00e1ng thanh l\u1ecbch, c\u1ea3m gi\u00e1c tho\u1ea3i m\u00e1i, b\u1ec1n, d\u1ec5 s\u1eed d\u1ee5ng, b\u1ea5t k\u1ec3 nhi\u1ec7t \u0111\u1ed9 cao hay th\u1ea5p, \u0111\u1ec1u kh\u00f4ng s\u1ea3n sinh ra b\u1ea5t k\u1ef3 ch\u1ea5t c\u00f3 h\u1ea1i n\u00e0o cho c\u01a1 th\u1ec3. L\u1edbp trong v\u00e0 ngo\u00e0i l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9. \u0110\u01b0\u1ee3c tinh ch\u1ebf b\u1eb1ng c\u00f4ng ngh\u1ec7 ch\u00e2n kh\u00f4ng ti\u00ean ti\u1ebfn, h\u00ecnh d\u00e1ng thanh l\u1ecbch, hi\u1ec7u su\u1ea5t b\u1ecbt k\u00edn t\u1ed1t, hi\u1ec7u su\u1ea5t c\u00e1ch nhi\u1ec7t t\u1ed1t. C\u00f3 th\u1ec3 d\u00f9ng v\u1edbi \u0111\u00e1 ho\u1eb7c \u0111\u1ed3 u\u1ed1ng n\u00f3ng.<\/p>\n
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3. T\u1ea1i sao b\u00ecnh th\u1ee7y kh\u00f4ng th\u1ec3 \u0111\u1ef1ng tr\u00e0 v\u00e0 s\u1eefa?<\/p>\n
V\u00ec tr\u00e0 ch\u1ee9a nhi\u1ec1u axit tannic, theophylline v\u00e0 d\u1ea7u th\u01a1m, \u0111\u1ed3ng th\u1eddi c\u0169ng ch\u1ee9a nhi\u1ec1u vitamin, n\u00ean ch\u1ec9 c\u00f3 th\u1ec3 pha trong n\u01b0\u1edbc n\u00f3ng 70%-80%. Khi pha tr\u00e0 trong b\u00ecnh n\u01b0\u1edbc c\u00e1ch nhi\u1ec7t, tr\u00e0 s\u1ebd \u0111\u01b0\u1ee3c ng\u00e2m trong n\u01b0\u1edbc \u1edf nhi\u1ec7t \u0111\u1ed9 cao trong th\u1eddi gian d\u00e0i, do \u0111\u00f3 nhi\u1ec1u vitamin trong tr\u00e0 s\u1ebd b\u1ecb ph\u00e1 h\u1ee7y, axit tannic v\u00e0 d\u1ea7u th\u01a1m s\u1ebd b\u1ecb bay h\u01a1i, l\u00e0m gi\u1ea3m gi\u00e1 tr\u1ecb dinh d\u01b0\u1ee1ng ban \u0111\u1ea7u c\u1ee7a tr\u00e0, khi\u1ebfn tr\u00e0 m\u1ea5t v\u1ecb v\u00e0 \u0111\u1eafng, c\u00e1c ch\u1ea5t c\u00f3 h\u1ea1i trong tr\u00e0 c\u0169ng s\u1ebd t\u0103ng l\u00ean. Lo\u1ea1i tr\u00e0 nh\u01b0 v\u1eady ch\u1eafc ch\u1eafn kh\u00f4ng t\u1ed1t \u0111\u1ec3 u\u1ed1ng. Trong s\u1eefa, vi khu\u1ea9n c\u00f3 th\u1ec3 sinh s\u00f4i sau m\u1ed7i 20 ph\u00fat v\u00e0 l\u00e0m h\u1ecfng s\u1eefa trong 3-4 gi\u1edd. Ngo\u00e0i ra, nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng \u0111\u1ed5i trong b\u00ecnh n\u01b0\u1edbc c\u00e1ch nhi\u1ec7t c\u00f3 th\u1ec3 ph\u00e1 h\u1ee7y vitamin trong s\u1eefa, \u0111\u1ed3ng th\u1eddi \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn s\u1ee9c kh\u1ecfe c\u1ee7a tr\u1ebb em.<\/p>\n
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4. Th\u1eddi gian gi\u1eef nhi\u1ec7t c\u1ee7a b\u00ecnh n\u01b0\u1edbc gi\u1eef nhi\u1ec7t th\u00f4ng th\u01b0\u1eddng l\u00e0 bao l\u00e2u?<\/p>\n
B\u00ecnh n\u01b0\u1edbc gi\u1eef nhi\u1ec7t th\u00f4ng th\u01b0\u1eddng c\u00f3 th\u1ec3 gi\u1eef n\u00f3ng ho\u1eb7c l\u1ea1nh trong 6-10 gi\u1edd v\u00e0o m\u00f9a h\u00e8 v\u00e0 3-5 gi\u1edd v\u00e0o m\u00f9a \u0111\u00f4ng.<\/p>\n
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5. L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 kh\u1eed m\u00f9i h\u00f4i trong b\u00ecnh n\u01b0\u1edbc c\u00e1ch nhi\u1ec7t?<\/p>\n
\u0110\u1ea7u ti\u00ean, d\u00f9ng n\u01b0\u1edbc s\u1ea1ch r\u1eeda s\u1ea1ch b\u00ean trong v\u00e0 b\u00ean ngo\u00e0i b\u00ecnh n\u01b0\u1edbc c\u00e1ch nhi\u1ec7t, sau \u0111\u00f3 d\u00f9ng b\u00e0n ch\u1ea3i \u0111\u00e1nh r\u0103ng ch\u00e0 x\u00e1t m\u1ed9t \u00edt mu\u1ed1i v\u00e0o ch\u1ed7 b\u1ea9n v\u00e0i l\u1ea7n, hi\u1ec7u qu\u1ea3 ngay l\u1eadp t\u1ee9c. Cu\u1ed1i c\u00f9ng, d\u00f9ng n\u01b0\u1edbc s\u1ea1ch r\u1eeda s\u1ea1ch b\u00ean trong v\u00e0 b\u00ean ngo\u00e0i b\u00ecnh.<\/p>\n
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1. What is the working principle of the insulated water bottle? Its wall is composed of two layers, and the middle of the two layers is a vacuum (vacuum does not heat conduction), that is, through the vacuum to insulate hot water from the outside world, to achieve the purpose of thermal insulation. 2. What […]<\/p>\n","protected":false},"author":0,"featured_media":1005,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[3],"tags":[],"class_list":["post-1006","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-info"],"acf":[],"yoast_head":"\n