退捻 meaning in English

twist run back

Analysis on the untwist retwist methods in determining the twist of oe yarn
几种退捻加捻法测试转杯纱捻度的比较
Standard test method for twist in single spun yarns by the untwist - retwist method
退捻加捻法测定单细纱捻数的标准试验方法
Textiles . testing threads . determining the twisting of threads by untwisting . retwisting with a double re - test
纺织品.线试验.用退捻法对线加捻的测定.用二次重复试验的再加捻