表 2. Distribution of fibers in regions of DC300 and DLC300.
DC300 和 DLC300 范围内纤维分布
| 直径分组 | 直径/μm | DC300 纤维数量 | DLC300 纤维数量 |
| D ≥ 10.7 μm | 11.5 | 76 | 115 |
| 9.4 μm ≤ D < 10.7 μm | 10.0 | 196 | 115 |
| 7.1 μm ≤ D < 9.4 μm | 8.7 | 1 756 | 285 |
| D < 7.1 μm | 5.7 | 13 109 | 4 973 |
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