...废弃电路板；材料断口；表面形貌；分形维数；MATLAB程序[gap=1681]Key words: waste printed circuit boards; material fracture; surface morphology; fractal dimension; MATLAB program..
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material fracture toughness 材料断裂韧性
granular filter material fracture 粒状破坏
fracture of material 材料断裂
fracture mending material 裂缝修补材料
fracture fixation material 骨折固定材料
fracture of rock material 岩石断裂
Fracture Mechanics of Material 材料破裂力学
dynamic fracture of ductile material 韧性介质动态损伤
The fractal dimension of the material fracture rises with the increase of whisker direction Angle.
材料断口分维值随着晶须方向角的增大而增大。
Many research results of composite material fracture were derived by the method of composite complex function.
利用复变函数方法，对复合材料平面断裂问题的研究已经取得了许多成果。
The material fracture toughness was adequate to ensure development of the full fatigue resistance of the weld detail.
材料的断裂韧性可充分满足焊缝细节疲劳抗力的发挥。
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