本方法适用于精纺系统加工的精梳条。对于含有两种或两种以上不同介电常数（例如羊毛和聚酯）和长度分布的纤维的长条，结果可能无法准确反映顶部的实际纤维长度分布。

The method is applicable to combed slivers processed on the worsted system. For slivers containing two or more fibres of different dielectric constants (for example wool and polyester) and length distributions, the results may not be an accurate reflection of the actual fibre-length distribution of the top.