The proper control of the drawingtension and humidity can increase the fiber mechanical properties.
而适当控制牵伸过程中的张力和湿度的大小，可以提高纤维的力学性能。
2
The drawingtension increases with the increase of drawing ratio and speed, and with the decrease of drawing temperature.
随着拉伸比、拉伸速度的提高和拉伸温度的降低，拉伸张力增大。
3
The dependence of the refractive index of optical fiberes on composition, temperature, warelength, M F D and drawingtension (or drawing temperature) as well as attenuation is described.