L\u1ef1a ch\u1ecdn tr\u1eadn \u0111\u1ea5u ph\u00f9 h\u1ee3p l\u00e0 b\u00ed quy\u1ebft \u0111\u00e1nh t\u00e0i x\u1ec9u t\u1ed1t nh\u1ea5t<\/figcaption><\/figure>\n B\u00ed k\u00edp \u0111\u00e1nh k\u00e8o t\u00e0i x\u1ec9u ch\u1eafc th\u1eafng<\/b><\/h3>\n
Nh\u1eefng tr\u1eadn k\u00e8o c\u00f3 t\u1ef7 l\u1ec7 l\u00ean xu\u1ed1ng, thay \u0111\u1ed5i li\u00ean t\u1ee5c l\u00e0 nh\u1eefng k\u00e8o b\u1ecbp kh\u00f4ng n\u00ean l\u1ef1a ch\u1ecdn. C\u00f9ng v\u1edbi \u0111\u00f3, c\u00f3 nh\u1eefng tr\u1eadn \u0111\u1ea5u mang t\u00ednh b\u00e1n \u0111\u1ed9 cao, c\u00e1c b\u1ea1n kh\u00f4ng n\u00ean theo \u0111\u00e2u nh\u00e9.<\/span><\/p>\nC\u00e1c b\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra tr\u1eadn \u0111\u1ea5u c\u00f3 b\u00e1n \u0111\u1ed9 hay kh\u00f4ng \u0111\u1ec3 tr\u00e1nh tr\u01b0\u1eddng h\u1ee3p m\u00ecnh b\u1ecb l\u1eeba nh\u01b0 sau:<\/span><\/p>\n\n- Ki\u1ec3m tra v\u00e0 l\u01b0u l\u1ea1i h\u00ecnh \u1ea3nh k\u00e8o, th\u00f4ng th\u01b0\u1eddng tr\u01b0\u1edbc 2 \u2013 3 ng\u00e0y tr\u1eadn \u0111\u1ea5u di\u1ec5n ra c\u00e1c b\u1ea1n s\u1ebd th\u1ea5y nh\u00e0 c\u00e1i tung k\u00e8o<\/span><\/li>\n
- M\u1ed9t ng\u00e0y tr\u01b0\u1edbc thi \u0111\u1ea5u l\u1ea1i v\u00e0o ki\u1ec3m tra th\u00f4ng tin xem c\u00f3 s\u1ef1 thay \u0111\u1ed5i nh\u01b0 th\u1ebf n\u00e0o<\/span><\/li>\n
- M\u1ed9t gi\u1edd tr\u01b0\u1edbc khi tr\u1eadn \u0111\u1ea5u di\u1ec5n ra, c\u00e1c b\u1ea1n n\u00ean v\u00e0o b\u1ea3ng k\u00e8o ki\u1ec3m tra l\u1ea1i l\u1ea7n n\u1eefa cho ch\u1eafc ch\u1eafn. N\u1ebfu tr\u1eadn \u0111\u1ea5u c\u00f3 s\u1ef1 thay \u0111\u1ed5i th\u1ea5t th\u01b0\u1eddng n\u00ean b\u1ecf \u0111i t\u00ecm tr\u1eadn kh\u00e1c.<\/span><\/li>\n<\/ul>\n
B\u00ed k\u00edp \u0111\u00e1nh k\u00e8o t\u00e0i x\u1ec9u hi\u1ec7p 1, hi\u1ec7p 2 chu\u1ea9n nh\u1ea5t hi\u1ec7n nay<\/b><\/h3>\n
V\u1edbi c\u00e1c anh em mu\u1ed1n t\u0103ng t\u1ef7 l\u1ec7 chi\u1ebfn th\u1eafng cao th\u01b0\u1eddng s\u1ebd chia l\u00e0m 2 l\u1ea7n \u0111\u1eb7t c\u01b0\u1ee3c l\u00e0 k\u00e8o 1 v\u00e0 k\u00e8o 2 \u0111\u1ec3 gi\u1ea3m thi\u1ec3u t\u1ed1i \u0111a vi\u1ec7c m\u1ea5t qu\u00e1 nhi\u1ec1u ti\u1ec1n ho\u1eb7c t\u0103ng c\u01a1 h\u1ed9i chi\u1ebfn th\u1eafng cho ch\u00ednh m\u00ecnh. Tr\u00ean c\u01a1 s\u1edf \u0111\u00f3, c\u00e1c b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1eb7t c\u01b0\u1ee3c m\u1ed9t c\u00e1ch tho\u1ea3i m\u00e1i h\u01a1n r\u1ea5t nhi\u1ec1u:<\/span><\/p>\nK\u00e8o 1<\/i><\/b><\/h4>\n
\u0110\u00e2y l\u00e0 k\u00e8o m\u1edf \u0111\u1ea7u n\u00ean c\u00e1c anh em th\u01b0\u1eddng kh\u00f4ng c\u00f3 t\u00e2m l\u00fd \u0111\u1eb7t c\u01b0\u1ee3c qu\u00e1 nhi\u1ec1u m\u00e0 th\u01b0\u1eddng l\u1ef1a ch\u1ecdn nh\u1eefng k\u00e8o v\u1eeba ph\u1ea3i. Trong hi\u1ec7p 1, ng\u01b0\u1eddi ch\u01a1i c\u00f3 t\u00e2m l\u00fd ng\u1ea1i n\u1ed5 n\u00ean th\u01b0\u1eddng r\u1ea5t \u00edt khi xu\u1ed1ng tay m\u00e0 thay v\u00e0o \u0111\u00f3 ch\u1ec9 PK \u1edf m\u1ee9c \u0111\u1ed9 b\u00ecnh th\u01b0\u1eddng. C\u00e1c b\u1ea1n n\u00ean ch\u1ecdn k\u00e8o c\u00e1c \u0111\u1ed9i c\u00f3 x\u1ea5p x\u1ec9 100 v\u00ed d\u1ee5 0.98, 1.43,\u2026 T\u1ef7 l\u1ec7 PK kh\u00f4ng \u0111\u01b0\u1ee3c qu\u00e1 th\u1ea5p so v\u1edbi \u0111\u1ed9i c\u1eeda tr\u00ean.<\/span><\/p>\nK\u00e8o 2<\/i><\/b><\/h4>\n
K\u00e8o 2 th\u01b0\u1eddng l\u00e0 k\u00e8o mang t\u00ednh quy\u1ebft \u0111\u1ecbnh n\u00ean c\u00e1c anh em \u0111\u1ec1u t\u1eadp trung \u0111\u00e1nh k\u00e8o 2 nhi\u1ec1u h\u01a1n so v\u1edbi k\u00e8o 1. \u1ede k\u00e8o 2, d\u01b0\u1eddng nh\u01b0 c\u00e1c \u0111\u1ed9i c\u0169ng s\u1ebd c\u00f3 tinh th\u1ea7n v\u00e0 n\u0103ng l\u1ef1c thi \u0111\u1ea5u nhi\u1ec1u h\u01a1n d\u1ec5 d\u00e0ng mang \u0111\u1ebfn cho ng\u01b0\u1eddi ch\u01a1i t\u00e2m l\u00fd mu\u1ed1n chi\u1ebfn th\u1eafng. Th\u00eam v\u00e0o \u0111\u00f3, n\u1ebfu k\u00e8o 1 ch\u1eb3ng may b\u1ecb thua th\u00ec vi\u1ec7c \u0111\u1eb7t c\u01b0\u1ee3c \u1edf k\u00e8o 2 c\u00f3 khi l\u00ean g\u1ea5p \u0111\u00f4i, g\u1ea5p 3 v\u1edbi t\u00e2m l\u00fd mu\u1ed1n g\u1ee1.<\/span><\/p>\nNh\u1eefng \u0111i\u1ec1u c\u1ea7n l\u01b0u \u00fd khi ch\u01a1i c\u01b0\u1ee3c t\u00e0i x\u1ec9u b\u00f3ng \u0111\u00e1<\/b><\/h2>\n Ch\u1ecdn c\u00e1ch \u0111\u1eb7t t\u00e0i x\u1ec9u\u00a0 ph\u00f9 h\u1ee3p<\/b><\/h3>\n
\u0110\u1ea7u ti\u00ean, ch\u00fang ta ph\u1ea3i ghi nh\u1edb r\u1eb1ng trong ph\u01b0\u01a1ng ph\u00e1p \u0111\u1eb7t c\u01b0\u1ee3c t\u00e0i x\u1ec9u trong b\u00f3ng \u0111\u00e1 tr\u1ef1c tuy\u1ebfn, c\u00f3 hai k\u1ef9 thu\u1eadt \u0111\u1eb7t c\u01b0\u1ee3c: Ch\u1ecdn \u0111\u1eb7t c\u01b0\u1ee3c t\u00e0i tr\u01b0\u1edbc, x\u1ec9u sau ho\u1eb7c l\u00e0 \u0111\u1eb7t x\u1ec9u tr\u01b0\u1edbc v\u00e0 t\u00e0i sau. \u0110\u1ec3 l\u1ef1a ch\u1ecdn \u0111\u01b0\u1ee3c k\u1ef9 thu\u1eadt c\u01b0\u1ee3c ph\u00f9 h\u1ee3p nh\u1ea5t th\u00ec b\u1ea1n n\u00ean ch\u1ecdn nh\u1eefng tr\u1eadn m\u00e0 t\u1ea1i \u0111\u00f3 h\u00e0ng ph\u00f2ng th\u1ee7 c\u1ee7a hai \u0111\u1ed9i \u0111ang \u1edf tr\u1ea1ng th\u00e1i t\u1ed1t nh\u1ea5t.<\/span><\/p>\n