用于快速测定各种纱线的线密度。

Used for testing the linear density of various yarn quickly.

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纱线细度是纱线线密度的一种度量方法。

Yarn number is a measure of linear density.

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用途：线密度光栅，通过折射光可快速确定针织或机织物每厘米或每英寸内的纱线根数。

USES: linear density grating, through the refraction of light can quickly determined or knitting machine woven per cm or every inch of the yarn number within the root.

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