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.
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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