| | | | | | | | | | | | | | | | | | | | | | | | | | | | 1. | | I | | | | | | 0.2 | 65% | 85% | | | | 2. | | DB15/T 389-2021 | | 6 | 4 | | | | 3. | | 0. | 2 65% | 85% | | 4. 1 | 1 | | | | | 2/3 | 5. | | | | | | 100 | 20 80 | | 55 111 | | 1-2 1 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2025 3 6 | | | |