A single strand lives for up to seven years.
一根头发的寿命可长达7年.
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A single strand of matching thread is recommended for hand stitching.
手缝线迹推荐使用一根单股相配的线.
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Electronic single strand strength tester, yarn twist tester, skein yarn tester, ect.
拥有电子单纱强力机 、 纱线捻度仪 、 缕纱测试仪等国内外先进检测设备.
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Comet assay detects DNA single - strand breaks of single cell.
彗星试验研究和测定的是单个细胞DNA链断裂.
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Run your fingers through your hair now and look at a single strand.
用你的手指抓一束头发,仔细观察其中每一根.
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