yarn count

例句：

1. 1. The weaver needs to know the exact count of the yarn to make sure it's even and strong.
   织布工需要知道纱线的确切计数，以确保它均匀且坚固。
2. 2. The quality of the yarn is important for the final product.
   纱线的质量对最终产品至关重要。
3. 3. The yarn count is a measure of the weight of the yarn in terms of yards per pound.
   纱线计数是衡量每磅纱线重量的单位，以码为单位。