. )cmlmixx1,1150165][.===cmlmiyy 2, 2150330][.===Ta cú m=1l h s k n nh hng ca un dc. Mt khỏc: 12 12 . 23 hhbhbFJiyy=== h =cmiy 62, 7 12. 2 ,21 2. ==Chn loi ct chng 6x 12 cm73,1 12 6 12 ===bix46,3 12 12 12 ===hiyGVHD. cmlmixx1,1150165][.===cmlmiyy 2, 2150330][.===Ta cú m=1 l h s k n nh hng ca un dc. Mt khỏc: 12 12 . 23 hhbhbFJiyy=== h =cmiy6,7 12. 2 ,21 2. ==Chn loi ct chng 5x10 cm44,1 12 5 12 ===bix89 ,2 12 10 12 ===hiy150][114444,1165.=<===xxxrlm. 454500150.63 .20 ].[ 2 max==== ml 23 ,1 29 610.45==*Kim tra theo vừng cho phộp: 25 0 128 14lEJqllf=;Vi E = 105 kg/cm 2 43345 12 3 .20 12 cmbhJ ===ml 97,0 12. 47 ,2. 2503 .20 .10. 128 335==...