一、拉伸度 拉伸度或叫拉伸百分数(pereentageQ王streteh)与热松弛(Thermal relaxation)是定向有机玻璃宏观定向效应的两种不同表示法。拉伸度表征了玻璃定向拉伸的程度,它是拉伸定向中的特定指标。
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计算得到了杆内温度及位移的分布规律，分析了移动热源速度、弹性模量以及热松弛时间对温度和位移的影响。
The effects of moving heat source speed, temperature-dependent modulus of elasticity and thermal relaxation time on displacement and temperature are studied.
绝大多数研究发现，在发作的早期应用热疗能提供一个短期的缓解，增加灵活性、降低血管扩展导致的疼痛和松弛僵硬。
Most have found that applying heat in the early stages of an episode provides short-term relief, increasing mobility and reducing pain by dilating blood vessels and relaxing stiffness.
实验表明，在310 ~ 325 K出现的热焓松弛峰的峰高和峰温随存放时间的变化与冷却条件有关。
The experimental results indicated that the changes of height and temperature of the small endothermal peak appearing at 310-325k with storing time is relative to the cooling conditions.
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