Tissue damage is a threshold process, each dose curve can be regarded as the thresholdcurve, degree of injury increases exponentially with distance attenuation.
组织损伤是阈值过程，每条剂量曲线可被视为阈值曲线，损伤程度随距离的增加呈指数衰减。
2
The thresholdcurve was measured and the fracture modes were identified through the observation of microscopy, they are thermal stressing, thermal thinning and thermal puncture.
实验测量了断裂阈值曲线，并结合显微观察确定了三种断裂模式：热应力、热减薄和热击穿模式。
3
As the fat part of the bell curve of income inequality moves beyond the middle-class threshold, huge Numbers are lifted out of poverty. Yet many of them are still perilously close to the borderline.