| | | | | | | | | | | | | | | | | 1. | | | 15 | | 55% 20% | 15% 10% | | 0 6 0.51.5 | | 6 18 | 23 | / | 34 | 2. | | | | | 50 | | 3. | 45 | | | | | 1. | | 3 4 | | 0.51m/s | 10 25℃ | 60 70% | | 2. | 2 | | | | 1821 | | | 3. | 1 | 10% 7 | | | | | | | 1. | 1 | BVDV | | IBR | | 0.2mg/kg | | 2. | | 3% | | | + | 48 | 3. | | 0.5% | | | | | | | + | |