<\/span><\/h3>\nV\u1ea3i kh\u00f4ng d\u1ec7t kh\u00f4ng c\u00f3 s\u1ee3i d\u1ecdc v\u00e0 s\u1ee3i ngang n\u00ean c\u1eaft may r\u1ea5t ti\u1ec7n l\u1ee3i, nh\u1eb9 v\u00e0 d\u1ec5 t\u1ea1o h\u00ecnh. B\u1edfi v\u00ec n\u00f3 l\u00e0 m\u1ed9t lo\u1ea1i v\u1ea3i kh\u00f4ng y\u00eau c\u1ea7u k\u00e9o s\u1ee3i ho\u1eb7c d\u1ec7t, n\u00f3 ch\u1ec9 \u0111\u1ecbnh h\u01b0\u1edbng ho\u1eb7c s\u1eafp x\u1ebfp ng\u1eabu nhi\u00ean c\u00e1c s\u1ee3i ho\u1eb7c s\u1ee3i kim lo\u1ea1i d\u1ec7t \u0111\u1ec3 t\u1ea1o th\u00e0nh c\u1ea5u tr\u00fac m\u1ea1ng, sau \u0111\u00f3 s\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p c\u01a1 h\u1ecdc, li\u00ean k\u1ebft nhi\u1ec7t ho\u1eb7c h\u00f3a h\u1ecdc \u0111\u1ec3 gia c\u1ed1 n\u00f3.<\/span><\/p>\nN\u00f3 kh\u00f4ng \u0111\u01b0\u1ee3c \u0111an xen v\u00e0 b\u1ec7n b\u1edfi t\u1eebng s\u1ee3i m\u1ed9t m\u00e0 c\u00e1c s\u1ee3i \u0111\u01b0\u1ee3c li\u00ean k\u1ebft tr\u1ef1c ti\u1ebfp v\u1edbi nhau b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p v\u1eadt l\u00fd, v\u00ec v\u1eady khi l\u1ea5y l\u1edbp keo l\u00f3t trong qu\u1ea7n \u00e1o, b\u1ea1n s\u1ebd th\u1ea5y r\u1eb1ng, b\u1ea1n kh\u00f4ng th\u1ec3 l\u1ea5y m\u1ed9t s\u1ee3i ch\u1ec9 n\u00e0o ra \u0111\u01b0\u1ee3c. S\u1ea3n ph\u1ea9m kh\u00f4ng d\u1ec7t ph\u00e1 v\u1ee1 c\u00e1c nguy\u00ean t\u1eafc d\u1ec7t truy\u1ec1n th\u1ed1ng v\u00e0 c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m l\u00e0 quy tr\u00ecnh s\u1ea3n xu\u1ea5t ng\u1eafn, t\u1ed1c \u0111\u1ed9 s\u1ea3n xu\u1ea5t nhanh, s\u1ea3n l\u01b0\u1ee3ng cao, gi\u00e1 th\u00e0nh r\u1ebb, \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i v\u00e0 nhi\u1ec1u ngu\u1ed3n nguy\u00ean li\u1ec7u.<\/span><\/p>\n