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| 20, , O2, | 300 400 | |
| , / | 400 450 | |
| coli , ., | 109 1012 | |
| , / | 1 5 | |
| 800 1000 | 10 ( ) | |
| , / | 15 ( -) |
. i -
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2
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t , .
| t = V / Q, | (4) |
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3 ()
| , .., | , FHB, 3/ |
| 150 | 0,1 |
| 150-500 | 0,2 |
| 500-1000 | 0,3 |
| 1000 | 0,4 |
| 0,1 |
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:
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t - t _;
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