... căng11 28 1,93 2, 06 1,76 1,64 2, 12 1, 82 4,18 51,15 4,16 12 25 1,95 2, 06 1,81 1,64 2, 12 1,87 7,16 17,66 6,66 21 32 2,01 2, 06 1,91 1,64 2, 12 1,97 2, 15 12, 54 2, 11 22 30 2 2,06 1,9 1,64 2, 12 1,96 ... 39, 12. 5,39da1=d1+ 2m= 38,93+ 2. 2da2=d 2 + 2m= 21 1,06+ 2. 2df1= d1 -2, 5m= 38,93- 2, 5 .2 df2= d 2 -2, 5m= 21 1,06- 2, 5 .2 db1=d1cos= 38,93. cos20odb2=d 2 cos= 21 1,06. cos20otheo TCVN 1065-71, =20 oarctg(tg/cos)= ... 2( 1+0,383-0,01) .2, 5 df1= d1- (2, 5-2x1)m=87,5 (2, 5- 2. 0, 127 ) .2, 5 df2= d 2 - (2, 5-2x 2 )m= 27 0- (2, 5- 2. 0,383) .2, 5db1=d1cos= 87,5. cos20odb2=d 2 cos= 27 0. cos20otheo TCVN 1065-71, =20 oarctg(tg/cos)=...