| | | | | | | | | | | 0.4 | 800 | | | | | | | 40% 90% | | 2000 | 2000 37 11043 | 1 1407 1 637 | 9 5688 38 11955 15 | 15 1 2000 | | 10 200 | 700 | 735 | | | 2021 11 | pH 0.5%~0.8 | 0.2%~0.3% 0.2 | 25% | 22% | 10% 15% | 20% | |