| 摘要 |
An apparatus comprising a plurality of first threads coupled to and extending from a substrate, and a plurality of second threads coupled to and extending from the substrate, wherein each of the plurality of first threads comprises a plurality of synthetic filaments, each of the plurality of filaments comprises a plurality of synthetic microfibers, each of the plurality of second threads is adjacent to at least one of the plurality of first threads, and each of the plurality of second threads does not comprise synthetic microfibers.
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