twist number

例句：

1. 1. The engineer measured the lengthof the rope and calculated the twist number.
   工程师测量了绳子的长度并计算了扭结次数。
2. 2. The twist number is an importantfactor in determining the strength of the material.
   扭结次数是决定材料强度的一个重要因素。
3. 3.The twist number can be used to measurethe amount of deformation that occurs during themanufacturing process.
   扭结次数可以用来测量在制造过程中发生的变形量。