Histological alterations during fracture healing were observed, and percentage of trabecular bone, cartilage and fibrous tissue in the bony callus was determined.
观察骨折愈合的组织学变化，并测定骨痂中小梁骨、软骨、纤维组织所占百分比。
An energy method for determining fracture toughness of fibrous composite laminates was based on the theory of elastic energy release rate and crack-growth resistance in this paper.
应用线弹性断裂力学的弹性能释放率及裂纹扩展阻力等基本概念和理论，建立起确定纤维增强高分子聚合物复合材料断裂韧性的能量方法。
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.
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。
Texture compact, fracture slightly fibrous, yellowish-white, starchy, cambium ring distinct, rays radiate, some with clefts.
质坚实，断面略显纤维性，黄白色，粉性，形成层环明显，射线放射状，有的有裂隙。
Texture compact, fracture slightly fibrous, yellowish-white, starchy, cambium ring distinct, rays radiate, some with clefts.
质坚实，断面略显纤维性，黄白色，粉性，形成层环明显，射线放射状，有的有裂隙。
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