Ch\u01a1i l\u00f4 xi\u00ean quay lu\u00f4n \u0111\u01b0\u1ee3c anh em trong gi\u1edbi l\u00f4 \u0111\u1ec1 \u01b0a chu\u1ed9ng. Nh\u01b0ng \u0111\u1ec3 b\u1eaft l\u00f4 xi\u00ean quay ch\u00ednh x\u00e1c th\u00ec c\u0169ng ph\u1ea3i n\u1eafm \u0111\u01b0\u1ee3c c\u00e1ch t\u00ednh v\u00e0 quy lu\u1eadt c\u1ee7a n\u00f3. Theo d\u00f5i b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y \u0111\u1ec3 t\u00ecm hi\u1ec3u l\u00f4 xi\u00ean quay l\u00e0 g\u00ec nh\u00e9!<\/p>\n\n\n\n
Xi\u00ean quay l\u00e0 c\u00e1ch ch\u01a1i \u0111\u1ed9c \u0111\u00e1o, t\u1ef7 l\u1ec7 tr\u00fang cao nh\u01b0ng v\u1eabn c\u00f2n kh\u00e1 xa l\u1ea1 v\u1edbi anh em l\u00f4 th\u1ee7. Xi\u00ean quay l\u00e0 g\u00ec? T\u00ednh l\u00f4 xi\u00ean quay nh\u01b0 n\u00e0o? \u0110\u00e1nh nh\u01b0 n\u00e0o \u0111\u1ec3 c\u00f3 l\u00e3i? Lu\u00f4n l\u00e0 th\u1eafc m\u1eafc c\u1ee7a nh\u1eefng anh em m\u1edbi ch\u01a1i. C\u00f9ng theo d\u00f5i b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y \u0111\u1ec3 hi\u1ec3u chi ti\u1ebft h\u01a1n v\u1ec1 c\u00e1ch \u0111\u00e1nh l\u00f4 xi\u00ean quay nh\u00e9!<\/p>\n\n\n\n
L\u00f4 xi\u00ean quay l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p ch\u01a1i bi\u1ebfn th\u1ec3 c\u1ee7a l\u00f4 xi\u00ean. \u0110\u00e2y l\u00e0 thu\u1eadt ng\u1eef ch\u1ec9 c\u00e1c c\u1eb7p xi\u00ean 2, xi\u00ean 3, xi\u00ean 4 \u0111\u01b0\u1ee3c l\u1eadp t\u1eeb nh\u1eefng con l\u00f4 \u0111\u01a1n l\u1ebb. Anh em v\u1eabn ch\u1ecdn ra nh\u1eefng con l\u00f4 \u0111\u1ec3 t\u1ea1o b\u1ed9 l\u00f4 xi\u00ean nh\u01b0ng khi so k\u1ebft qu\u1ea3 th\u00ec ch\u1ec9 c\u1ea7n tr\u00fang 1 ho\u1eb7c 2 con trong b\u1ed9 s\u1ed1 th\u00ec v\u1eabn gi\u00e0nh chi\u1ebfn th\u1eafng.<\/p>\n\n\n\n
V\u00ed d\u1ee5: Anh em ch\u01a1i xi\u00ean 4, nh\u01b0ng ch\u1ec9 v\u1ec1 2 con th\u00ec s\u1ebd \u0111\u01b0\u1ee3c t\u00ednh l\u00e0 tr\u00fang xi\u00ean 2. N\u1ebfu v\u1ec1 con th\u00ec t\u00ednh l\u00e0 tr\u00fang xi\u00ean 3. C\u00e1ch \u0111\u00e1nh n\u00e0y ti\u1ebft ki\u1ec7m th\u1eddi gian cho c\u1ea3 ng\u01b0\u1eddi ch\u01a1i v\u00e0 ng\u01b0\u1eddi \u00f4m b\u1ea3ng l\u00f4 \u0111\u1ec1. L\u00f4 xi\u00ean c\u00e0ng cao th\u00ec x\u00e1c su\u1ea5t tr\u00fang l\u00f4 c\u00e0ng th\u1ea5p. Tuy nhi\u00ean c\u00e1ch \u0111\u00e1nh n\u00e0y v\u1eabn h\u1ea5p d\u1eabn nhi\u1ec1u anh em b\u1edfi t\u1ef7 l\u1ec7 \u0103n ti\u1ec1n c\u1ef1c l\u1edbn.<\/p>\n\n\n\n
\u0110\u1ec3 ch\u01a1i xi\u00ean quay<\/strong> d\u1ec5 tr\u00fang th\u00ec anh em ph\u1ea3i hi\u1ec3u \u0111\u01b0\u1ee3c c\u00e1ch t\u00ednh ti\u1ec1n v\u00e0 t\u1ef7 l\u1ec7 \u0103n l\u00f4 xi\u00ean quay \u0111\u1ec3 tr\u00e1nh \u0111\u01b0\u1ee3c c\u00e1c r\u1ee7i ro khi ch\u01a1i l\u00f4 b\u1eb1ng h\u00ecnh th\u1ee9c n\u00e0y.<\/p>\n\n\n\n
Khi \u0111\u00e1nh l\u00f4 xi\u00ean quay 2<\/strong> th\u00ec t\u1ef7 l\u1ec7 tr\u00fang th\u01b0\u1edfng t\u01b0\u01a1ng t\u1ef1 nh\u01b0 \u0111\u00e1nh l\u00f4 xi\u00ean l\u00e0 1: 10. N\u1ebfu 1 trong 2 con kh\u00f4ng v\u1ec1 th\u00ec ngh\u0129a l\u00e0 \u0111\u00e3 tr\u01b0\u1ee3t.<\/p>\n\n\n\n
Ch\u01a1i l\u00f4 xi\u00ean quay 3<\/strong> ngh\u0129a l\u00e0 ch\u1ecdn ra 3 con l\u00f4 \u0111\u1ec3 \u0111\u00e1nh, ch\u1ec9 c\u1ea7n tr\u00fang 2 con th\u00ec s\u1ebd \u0111\u01b0\u1ee3c t\u00ednh v\u00e0 v\u1eabn c\u00f3 l\u00e3i. T\u1ef7 l\u1ec7 \u0103n c\u01b0\u1ee3c c\u1ee7a xi\u00ean quay 3 l\u00e0: 21,5% x 21,5% x 21,5% = 1,34%. S\u1ed1 ti\u1ec1n nh\u1eadn \u0111\u01b0\u1ee3c khi th\u1eafng xi\u00ean quay 3 s\u1ebd g\u1ea5p 65 l\u1ea7n chi ph\u00ed b\u1ecf ra ban \u0111\u1ea7u.<\/p>\n\n\n\n
T\u01b0\u01a1ng t\u1ef1 nh\u01b0 c\u00e1ch \u0111\u00e1nh xi\u00ean quay 3<\/strong> th\u00ec anh em c\u0169ng ch\u1ecdn ra 4 con s\u1ed1 \u01b0ng \u00fd \u0111\u1ec3 \u0111\u00e1nh l\u00f4 xi\u00ean 4. N\u1ebfu trong 4 con v\u1ec1 2 con th\u00ec s\u1ebd h\u00f2a v\u1ed1n, n\u1ebfu v\u1ec1 3 con th\u00ec anh em s\u1ebd l\u00e3i g\u1ea5p 70 l\u1ea7n s\u1ed1 v\u1ed1n ban \u0111\u1ea7u, n\u1ebfu tr\u00fang c\u1ea3 4 s\u1ed1 th\u00ec anh em s\u1ebd nh\u1eadn \u0111\u01b0\u1ee3c ti\u1ec1n c\u01b0\u1ee3c g\u1ea5p 170 l\u1ea7n chi ph\u00ed ban \u0111\u1ea7u. C\u00f4ng th\u1ee9c t\u00ednh x\u00e1c su\u1ea5t l\u00f4 xi\u00ean quay 4 l\u00e0: 21,5% x 21,5% x 21,5% x 21,5% = 0,00214%<\/p>\n\n\n\n
Mu\u1ed1n \u0111\u00e1nh tr\u00fang l\u00f4 xi\u00ean quay anh em c\u1ea7n nghi\u00ean c\u1ee9u, suy lu\u1eadn v\u00e0 \u00e1p d\u1ee5ng \u0111\u01b0\u1ee3c nh\u1eefng kinh nghi\u1ec7m soi c\u1ea7u v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p hi\u1ec7u qu\u1ea3. Theo d\u00f5i k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 h\u00e0ng ng\u00e0y v\u00e0 th\u1ed1ng k\u00ea l\u1ea1i nh\u1eefng con l\u00f4 c\u00f3 kh\u1ea3 n\u0103ng v\u1ec1 cao.<\/p>\n\n\n\n
C\u00e1ch \u0111\u01a1n gi\u1ea3n nh\u1ea5t l\u00e0 anh em s\u1eed d\u1ee5ng nh\u1eefng con s\u1ed1 hay ra c\u00f9ng nhau trong tu\u1ea7n \u0111\u1ec3 \u0111\u00e1nh xi\u00ean quay. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng c\u1eb7p s\u1ed1 hay v\u1ec1 d\u1ef1a v\u00e0o kinh nghi\u1ec7m \u0111\u00fac k\u1ebft t\u1eeb nh\u1eefng cao th\u1ee7 n\u00eau ra.<\/p>\n\n\n\n
Nu\u00f4i l\u00f4 xi\u00ean quay khung 3 ng\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c c\u00e1c cao th\u1ee7 c\u00f3 nhi\u1ec1u kinh nghi\u1ec7m s\u1eed d\u1ee5ng. Chia s\u1ed1 v\u1ed1n h\u1ee3p l\u00fd \u0111\u1ec3 nu\u00f4i l\u00f4 xi\u00ean s\u1ebd mang l\u1ea1i hi\u1ec7u qu\u1ea3 cao h\u01a1n. T\u1ef7 l\u1ec7 c\u01b0\u1ee3c h\u1ee3p l\u00fd \u0111\u1ec3 nu\u00f4i khung 3 ng\u00e0y l\u00e0 1:2:3, h\u00f4m \u0111\u1ea7u ti\u00ean c\u01b0\u1ee3c 10 \u0111i\u1ec3m, h\u00f4m th\u1ee9 2 c\u01b0\u1ee3c 20 \u0111i\u1ec3m v\u00e0 h\u00f4m cu\u1ed1i c\u00f9ng l\u00e0 30 \u0111i\u1ec3m. N\u1ebfu trong ng\u00e0y \u0111\u1ea7u nu\u00f4i m\u00e0 l\u00f4 \u0111\u00e3 v\u1ec1 th\u00ec anh em ng\u1eebng lu\u00f4n v\u00e0 ch\u1ecdn xi\u00ean kh\u00e1c \u0111\u1ec3 ch\u01a1i<\/p>\n\n\n\n
Khi \u0111\u00e3 t\u00ecm ra nh\u1eefng con s\u1ed1 hay v\u1ec1 c\u00f9ng nhau th\u00ec anh em d\u1ec5 d\u00e0ng gh\u00e9p \u0111\u01b0\u1ee3c c\u1eb7p xi\u00ean \u0111\u1eb9p. K\u1ebft h\u1ee3p v\u1edbi nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p v\u00e0 c\u00e1ch soi c\u1ea7u l\u00f4 kh\u00e1c nhau s\u1ebd mang v\u1ec1 cho anh em hi\u1ec7u qu\u1ea3 t\u1ed1t nh\u1ea5t. Hy v\u1ecdng qua b\u00e0i vi\u1ebft n\u00e0y anh em \u0111\u00e3 bi\u1ebft \u0111\u01b0\u1ee3c xi\u00ean quay l\u00e0 g\u00ec v\u00e0 c\u00e1ch t\u00ednh l\u00f4 xi\u00ean quay. Ch\u00fac anh em may m\u1eafn.<\/p>\n\r\n\r\n