单位载荷法是一种简单、直观、实用的钩针变形计算法，它有别于复杂的传统计算法。
The unit load method is a simple, easy and practical calculating method which differs from the complicated traditional ones.
在试验温度区内，控制韧性的因素是断裂载荷、纤维裂纹长度和单位纤维裂纹扩展能量。
Within the range of test temperature, the factors controlling the toughness are fracture loads, the lengths of fibrous crack, and the energy absorbed by each fibrous crack extension.
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