ductility point的用法和樣例：
例句
- The yield point represents the dividing line or transition from the elastic to the plastic region of the curve.
屈服點(diǎn)是彈性變形區域到塑性變形區域之間曲線(xiàn)的過(guò)渡點(diǎn)。 - In order to ensure that the structure is stable, the working stresses are kept well below the yield point or the proof stress.
為了保證結構穩定，工作應力應很好地保持在屈服點(diǎn)或彈性極限以下。
