挠曲计 meaning in English

flexion spring
flexure meter

Leather - physical and mechanical tests - determination of flex resistance by flexometer method iso 5402 : 2002 ; german version en iso 5402 : 2002
皮革.物理和机械试验.用挠曲计测定耐曲挠性
Methods of testing vulcanized rubber - determination of temperature rise and resistance to fatigue in flexometer testing compression flexometer
橡胶的物理试验.第a50部分:在挠曲计试验中温升和耐疲劳性的测定