用于測定粗紗的捻度，性能符合GB/T 2543.1的要求。 Used for testing the twist of roving . The properties should be in conformity with the requirement specified in GB/T 2543.1. 主要技術(shù)參數(shù)Main Technical Data 試驗(yàn)方法Testing Method 直接計(jì)算法 count directly method 實(shí)驗(yàn)長度Testing Length 0~300mm 測量范圍（捻）Testing Range(twist) 1~500 外形尺寸　External Dimensions L600 W120 H220mm