Mechanical knocking devices or specific knock methods may require lowering the interval threshold to recognize distinct knock events.
机械敲打设备或特定的敲打方法可能会需要降低间隔上限，从而识别出独特的敲打事件。
The mechanical properties of the butt welded joints have been evaluated according to the impulsive and fracture toughness as well as the rate and threshold values of fatigue crack propagation.
根据试验测定的焊缝各区冲击韧性、断裂韧性、疲劳裂纹扩展速率和疲劳裂纹扩展门槛值，对焊缝力学性能作出综合评价。
Mechanical gastric sensation threshold was not relevant with gastric compliance.
胃机械感觉压力阈值与近端胃顺应性无关。
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