The second factor is the yarn itself. In theoretical discussions, yarn weight, especially for short lengths of yarn, is neglected.

第二是纱线因素，纱线的重量，特别是纱线输送距离较短时，是可以忽略不计的。

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Combining yarn weight deviation and drawing frame weight deviation to adjust wheel gear, valid control weight deviation per hundred meter yarn and weight CV % was achieved.

兼顾成纱重量偏差和末并单机台重量偏差来调整末并牵伸齿轮，达到有效控制成纱百米重量偏差和重量CV %的目的。

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The key to improve roving quality lies in reducing weight unevenness and improving yarn evenness.

提高粗纱质量的重点是降低纱的重量不匀率，提高粗纱条干的均匀度。

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They seek to find the best balance of yarn weight, stitch patterns, nylon color and at least 10 other variables.

WSJ: It Ain't Rocket Science, but Sock-Making Comes Close

The team of researchers from Australia, the US, Canada and South Korea demonstrated motors that could spin at nearly 600 revolutions per minute, turning a weight 2, 000 times heavier than the yarn itself.

BBC: Nanotube yarns twist like muscles