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- , , (. 2, );
- , , (. 2, ) (. 2, ) .
. 2.
. 1.6.
1.6
, % | ||
0.8...1.2 0.6...1.0 0.4...0,8 | ||
0,8...2,2 1.6...2,0 1.4...1.8 | ||
( , ) | 1,0...1,2 (1,6...2.0) 0,9...1,1 (1,5...1,9) | |
1,0...1,5 0,8...1,4 0,8... 1,2 |
b , , , 3212-80 (. 1.7). .
150 6, 151 250 5 250 3.
1.7
(. . 2) ( 3212-80)
h h, | ||||||
- | , | |||||
, | , | |||||
d£ h | d>h | d£ h | d>h | |||
10 | 217' | 434' | 254' | 545' | 326' | 400' |
10-18 | 136' | 311' | 154' | 349' | 232' | 252' |
19-30 | 109' | 240' | 131' | 303' | 154' | 217' |
31-50 | 048' | 142' | 102' | 205' | 116' | 129' |
51-80 | 034 | 113' | 043' | 126' | 054' | 104' |
81 - 120 | 026' | 054' | 032' | 103' | 040' | 046' |
121-180 | 019' | 038' | 023' | 046' | 029' | 034' |
181-250 | 019' | 037' | 022' | 044' | 028' | 033' |
251-315 | 019' | 037' | 022' | 044' | 027' | 033' |
316-400 | 018' | 036' | 021' | 043' | 026' | 032' |
401 - 500 | 017' | 035' | 021' | 041' | 026' | 031' |
|
|
, (. 2.).
. , , . .. ;
R - ; . 1/3 , 1/5 .
: 1,2,3, 5, 8, 10, 20, 30 40 .