Trung Qu\u1ed1c l\u00e0 m\u1ed9t trong nh\u1eefng n\u01b0\u1edbc r\u1ed9ng l\u1edbn nh\u1ea5t th\u1ebf gi\u1edbi, nh\u01b0ng do t\u1eeb Nam l\u00ean B\u1eafc c\u00e1ch nhau h\u00e0ng ng\u00e0n km, vi\u1ec7c v\u1eadn chuy\u1ec3n nhi\u1ec1u lo\u1ea1i v\u1eadt t\u01b0 th\u1eadt l\u00e0 b\u1ea5t ti\u1ec7n, \u0111\u1eb7c bi\u1ec7t l\u00e0 nh\u1eefng lo\u1ea1i th\u1ef1c ph\u1ea9m d\u1ec5 b\u1ecb h\u01b0 h\u1ecfng, tr\u01b0\u1edbc kia th\u01b0\u1eddng kh\u00f3 ch\u1edf \u0111i xa.<\/p>\n\n\n\n
Ngay t\u1eeb \u0111\u1eddi \u0110\u01b0\u1eddng, truy\u1ec1n thuy\u1ebft k\u1ec3 r\u1eb1ng, \u0111\u1ec3 l\u1ea5y l\u00f2ng D\u01b0\u01a1ng Qu\u00fd Phi, vua \u0110\u01b0\u1eddng Huy\u1ec1n T\u00f4ng \u0111\u00e3 ra l\u1ec7nh cho qu\u1ea7n th\u1ea7n d\u00f9ng ng\u1ef1a ch\u1ea1y ti\u1ebfp s\u1ee9c, qua c\u00e1c tr\u1ea1m d\u1ecbch, ng\u00e0y \u0111\u00eam th\u1ea7n t\u1ed1c v\u1eadn chuy\u1ec3n v\u1ea3i, m\u1ed9t lo\u1ea1i qu\u1ea3 nhi\u1ec7t \u0111\u1edbi \u0111\u1eb7c s\u1ea3n \u1edf mi\u1ec1n Nam l\u00ean Tr\u01b0\u1eddng An (th\u00e0nh ph\u1ed1 T\u00e2y An ng\u00e0y nay) \u0111\u1ec3 cho D\u01b0\u01a1ng Qu\u00fd Phi th\u01b0\u1edfng th\u1ee9c. M\u1eb7c d\u00f9 v\u1eady, lo\u1ea1i qu\u1ea3 d\u1ec5 b\u1ecb n\u00e1t h\u1ecfng nh\u01b0 qu\u1ea3 v\u1ea3i, khi \u0111\u01b0a \u0111\u1ebfn Tr\u01b0\u1eddng An, th\u00ec kh\u00f4ng c\u00f2n t\u01b0\u01a1i n\u1eefa.<\/p>\n\n\n\n
\u0110i \u0111\u00f4i v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a ng\u00e0nh giao th\u00f4ng v\u1eadn t\u1ea3i c\u00e1c lo\u1ea1i ph\u01b0\u01a1ng ti\u1ec7n giao th\u00f4ng nhanh \u0111\u00e3 khi\u1ebfn cho vi\u1ec7c v\u1eadn chuy\u1ec3n v\u1eadt t\u01b0 ng\u00e0y c\u00e0ng thu\u1eadn ti\u1ec7n, nhanh ch\u00f3ng. Nh\u01b0 m\u00e1y bay ch\u1eb3ng h\u1ea1n, n\u1ebfu ch\u1edf qu\u1ea3 v\u1ea3i t\u1eeb mi\u1ec1n Nam l\u00ean b\u1ea5t c\u1ee9 th\u00e0nh ph\u1ed1 n\u00e0o \u1edf mi\u1ec1n B\u1eafc, nhi\u1ec1u nh\u1ea5t c\u0169ng ch\u1ec9 m\u1ea5t v\u00e0i gi\u1edd \u0111\u1ed3ng h\u1ed3, tuy nhi\u00ean, gi\u00e1 th\u00e0nh v\u1eadn chuy\u1ec3n b\u1eb1ng m\u00e1y bay t\u01b0\u01a1ng \u0111\u1ed1i cao, h\u01a1n n\u1eefa ph\u01b0\u01a1ng th\u1ee9c v\u1eadn chuy\u1ec3n n\u00e0o m\u00e0 chi ph\u00ed r\u1ebb, kh\u1ed1i l\u01b0\u1ee3ng v\u1eadn chuy\u1ec3n l\u1edbn v\u00e0 gi\u1eef cho h\u00e0ng \u0111\u01b0\u1ee3c t\u01b0\u01a1i l\u00e2u kh\u00f4ng?<\/p>\n\n\n\n
S\u1ef1 ph\u00e1t hi\u1ec7n c\u1ee7a xe \u0111\u00f4ng l\u1ea1nh \u0111\u00e3 khi\u1ebfn cho nhi\u1ec1u lo\u1ea1i th\u1ef1c ph\u1ea9m d\u1ec5 h\u1ecfng, bi\u1ebfn ch\u1ea5t, nh\u01b0 tr\u00e1i c\u00e2y, th\u1ecbt, \u0111\u1ed3 u\u1ed1ng v.v., c\u00f3 th\u1ec3 v\u1eadn chuy\u1ec3n \u0111\u01b0\u1ee3c tr\u00ean m\u1ed9t c\u1ef1 ly d\u00e0i m\u00e0 v\u1eabn b\u1ea3o \u0111\u1ea3m \u0111\u01b0\u1ee3c \u0111\u1ed9 t\u01b0\u01a1i c\u1ee7a ch\u00fang.<\/p>\n\n\n\n
Xe \u0111\u00f4ng l\u1ea1nh chia l\u00e0m hai lo\u1ea1i l\u1edbn l\u00e0 \u00f4 t\u00f4 \u0111\u00f4ng l\u1ea1nh v\u00e0 xe \u0111\u00f4ng l\u1ea1nh ch\u1ea1y tr\u00ean \u0111\u01b0\u1eddng s\u1eaft. \u00d4 t\u00f4 \u0111\u00f4ng l\u1ea1nh ch\u1ee7 y\u1ebfu d\u00f9ng \u0111\u1ec3 v\u1eadn chuy\u1ec3n th\u1ef1c ph\u1ea9m trong n\u1ed9i th\u00e0nh, nh\u01b0 v\u1eadn chuy\u1ec3n n\u01b0\u1edbc gi\u1ea3i kh\u00e1t, qu\u1ea3 t\u01b0\u01a1i, c\u00e1, th\u1ecbt v.v. t\u1eeb nh\u00e0 m\u00e1y \u0111\u1ebfn c\u00e1c c\u1eeda h\u00e0ng, c\u00f3 khi c\u0169ng ti\u1ebfn h\u00e0nh v\u1eadn chuy\u1ec3n gi\u1eefa c\u00e1c th\u00e0nh ph\u1ed1 v\u1edbi c\u1ef1 ly trung b\u00ecnh v\u00e0 ng\u1eafn. Xe \u0111\u00f4ng l\u1ea1nh ch\u1ea1y tr\u00ean \u0111\u01b0\u1eddng s\u1eaft \u0111\u1ea3m nh\u1eadn nhi\u1ec7m v\u1ee5 v\u1eadn chuy\u1ec3n th\u1ef1c ph\u1ea9m \u0111\u00f4ng l\u1ea1nh v\u1edbi c\u1ef1 ly trung b\u00ecnh v\u00e0 xa.<\/p>\n\n\n\n
Tr\u01b0\u1edbc kia m\u1ed9t s\u1ed1 xe \u0111\u00f4ng l\u1ea1nh d\u00f9ng ph\u01b0\u01a1ng ph\u00e1p \u0111\u00f4ng l\u1ea1nh b\u1eb1ng n\u01b0\u1edbc \u0111\u00e1, t\u1ee9c l\u00e0 ng\u01b0\u1eddi ta ch\u1ea5t h\u1ed7n h\u1ee3p t\u1ea3ng n\u01b0\u1edbc \u0111\u00e1 v\u00e0 mu\u1ed1i v\u00e0o trong th\u00f9ng xe, l\u00e0m nh\u01b0 v\u1eady c\u00f3 th\u1ec3 gi\u1eef cho m\u00f4i tr\u01b0\u1eddng trong xe \u0111\u1ea1t \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 -8oC tr\u1edf xu\u1ed1ng. Tuy nhi\u00ean ph\u01b0\u01a1ng ph\u00e1p l\u00e0m \u0111\u00f4ng l\u1ea1nh ki\u1ec3u n\u00e0y ch\u1ec9 c\u00f3 th\u1ec3 duy tr\u00ec m\u1ed9t kho\u1ea3ng th\u1eddi gian c\u00f3 h\u1ea1n, n\u1ebfu mu\u1ed1n v\u1eadn chuy\u1ec3n \u0111\u00f4ng l\u1ea1nh \u0111\u01b0\u1eddng d\u00e0i th\u00ec ph\u1ea3i thi\u1ebft l\u1eadp c\u00e1c tr\u1ea1m ti\u1ebfp \u0111\u00e1 v\u00e0 mu\u1ed1i \u1edf d\u1ecdc \u0111\u01b0\u1eddng, \u0111\u1ec3 lu\u00f4n lu\u00f4n b\u1ed5 sung “ngu\u1ed3n l\u1ea1nh” duy tr\u00ec hi\u1ec7u qu\u1ea3 l\u00e0m l\u1ea1nh.<\/p>\n\n\n\n
Hi\u1ec7n nay, lo\u1ea1i xe \u0111\u00f4ng l\u1ea1nh c\u01a1 gi\u1edbi \u0111ang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i. Nguy\u00ean l\u00fd l\u00e0m vi\u1ec7c c\u1ee7a n\u00f3 v\u1ec1 c\u01a1 b\u1ea3n c\u0169ng gi\u1ed1ng nh\u01b0 t\u1ee7 l\u1ea1nh trong gia \u0111\u00ecnh, t\u1ee9c l\u00e0 th\u00f4ng qua ch\u1ea5t l\u00e0m l\u1ea1nh, sau khi h\u1ea5p th\u1ee5 nhi\u1ec7t l\u01b0\u1ee3ng th\u00ec ho\u00e1 h\u01a1i, ch\u1ea5t l\u00e0m l\u1ea1nh sau khi ho\u00e1 h\u01a1i s\u1ebd \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o m\u1ed9t m\u00e1y n\u00e9n t\u0103ng \u00e1p v\u00e0 t\u0103ng nhi\u1ec7t \u0111\u1ed9, l\u1ea1i ti\u1ebfp t\u1ee5c \u0111i v\u00e0o \u1ed1ng ng\u01b0ng t\u1ee5 v\u00e0 \u0111\u01b0\u1ee3c l\u00e0m l\u1ea1nh th\u00e0nh ch\u1ea5t l\u1ecfng, sau \u0111\u00f3 \u0111i v\u00e0o m\u1ed9t qu\u00e1 tr\u00ecnh thu nhi\u1ec7t l\u00e0m l\u1ea1nh m\u1edbi. Xe \u0111\u00f4ng l\u1ea1nh c\u01a1 gi\u1edbi c\u00f3 th\u1ec3 duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 b\u00ean trong xe trong m\u1ed9t th\u1eddi gian d\u00e0i \u1edf 18oC tr\u1edf xu\u1ed1ng, do \u0111\u00f3, nhi\u1ec1u ng\u01b0\u1eddi g\u1ecdi xe \u0111\u00f4ng l\u1ea1nh m\u1ed9t c\u00e1ch h\u00ecnh t\u01b0\u1ee3ng v\u00e0 ch\u00ednh x\u00e1c l\u00e0 “t\u1ee7 l\u1ea1nh si\u00eau l\u1edbn di \u0111\u1ed9ng”.<\/p>\n\n\n\n
\u0110i \u0111\u00f4i v\u1edbi nhu c\u1ea7u v\u1ec1 \u0111\u1eddi s\u1ed1ng c\u1ee7a con ng\u01b0\u1eddi kh\u00f4ng ng\u1eebng \u0111\u01b0\u1ee3c n\u00e2ng cao, k\u1ef9 thu\u1eadt \u0111\u00f4ng l\u1ea1nh c\u0169ng ng\u00e0y c\u00e0ng ph\u00e1t tri\u1ec3n. Ngo\u00e0i vi\u1ec7c x\u1eed l\u00fd c\u00f3 hi\u1ec7u qu\u1ea3 \u0111\u1ed1i v\u1edbi b\u1ea3n th\u00e2n c\u00e1c lo\u1ea1i th\u1ef1c ph\u1ea9m \u0111\u00f2i h\u1ecfi ph\u1ea3i gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 t\u01b0\u01a1i l\u00e2u, c\u00e1c lo\u1ea1i ph\u01b0\u01a1ng ti\u1ec7n v\u00e0 ph\u01b0\u01a1ng th\u1ee9c t\u00e0ng tr\u1eef v\u1eadn chuy\u1ec3n b\u1eb1ng t\u00e0u thu\u1ef7 \u0111\u00f4ng l\u1ea1nh, c\u00f4ngtenn\u01a1 \u0111\u00f4ng l\u1ea1nh c\u0169ng ti\u1ebfp t\u1ee5c xu\u1ea5t hi\u1ec7n, \u0111i\u1ec1u \u0111\u00f3 l\u00e0m cho c\u00f4ng vi\u1ec7c v\u1eadn chuy\u1ec3n \u0111\u00f4ng l\u1ea1nh c\u00e0ng th\u00eam thu\u1eadn l\u1ee3i, th\u1ef1c t\u1ebf.<\/p>\n\n\n\n
T\u1eeb kh\u00f3a: Xe \u0111\u00f4ng l\u1ea1nh; \u0110\u00f4ng l\u1ea1nh; B\u1ea3o qu\u1ea3n t\u01b0\u01a1i.<\/p>\n","protected":false},"excerpt":{"rendered":"
Trung Qu\u1ed1c l\u00e0 m\u1ed9t trong nh\u1eefng n\u01b0\u1edbc r\u1ed9ng l\u1edbn nh\u1ea5t th\u1ebf gi\u1edbi, nh\u01b0ng do t\u1eeb Nam l\u00ean B\u1eafc c\u00e1ch nhau h\u00e0ng ng\u00e0n km, vi\u1ec7c v\u1eadn chuy\u1ec3n nhi\u1ec1u lo\u1ea1i v\u1eadt t\u01b0 th\u1eadt l\u00e0 b\u1ea5t ti\u1ec7n, \u0111\u1eb7c bi\u1ec7t l\u00e0 nh\u1eefng lo\u1ea1i th\u1ef1c ph\u1ea9m d\u1ec5 b\u1ecb h\u01b0 h\u1ecfng, tr\u01b0\u1edbc kia th\u01b0\u1eddng kh\u00f3 ch\u1edf \u0111i xa. Ngay t\u1eeb \u0111\u1eddi […]<\/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-8720","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\/8720","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=8720"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8720\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=8720"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=8720"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=8720"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}