The parlous state of current yarntesting facilities is described.
介绍了目前长丝测试中存在的问题；
2
After testing different combinations, they chose two materials that worked: a silver-plated yarn that can light up and a kind of thread that conducts electricity.
在测试了不同的组合后，他们选择了两种有用的材料：一种可以发光的镀银纱和一种导电的线。
3
Based on theoretical and practical experience the author puts forward a new measurefor testing the twist of lower twist filament yarn and this measure is proved through testingpractice.