... )).cm(48,137 .20 .0 02, 0h.b.)cm(74,1337 .27 0 02. 10.800ah.Re.NF20min 22& apos;0'a'a==µ>=−=−=( )( )0min 22& apos;0a'ah.b.)cm(88 ,27 337 .27 00 32. 10.800ah.Re.NF µ>=−=−=Bố trí:( ) ( ).304:; 122 :F'a2a 228 ,27 cmF2 ,26 cm φ Bài 17: Cho một cấu ... lớn.).cm(045,335, 325 5,5455,54a2hee0=+−=+− =- Từ công thức:aa'a'a0nF.RF.R.h.b.RN −+α≤, ta có: .22 6,05,46 .20 .9010 .27 5 02, 4 .27 0 021 ,21 .27 00h.b.RNF.RF.R 220 n'a'aaa=−−=−−=α6, 022 6,00=α<=α1 52, 0465,3.2ha20'==>α.196,0A ... kG/cmRA).cm(56460ahh0=−=−=).cm (26 426 0a2hcm27,40)m(4 027 ,07 52, 30NMe0=−=−>====→ kéo lệch tâm lớn.).cm (27 ,14 426 027 ,40a2hee0=+−=+−=).cm (27 ,66 426 027 ,40a2hee'0'=−+=−+=( )0)m (20 456.340056.40.90. 42, 014.10.75)ah(Rh.bRAe.NF 223 0'a20n0'a<−≈−−=′−−=Chọn...