材料的断裂主要由主裂纹产生。
The fatigue of material is primarily due to the growth of major cracks.
结果表明，螺栓的预紧应力接近材料的断裂强度。
The results suggest that the stress is close to the breaking strength.
为使桥梁不致在使用中断裂，建造桥梁的材料强度必须非常高。
The material for building the bridge must be very strong so that it may not break in use.
陶瓷作为刀具材料的最大弱点是断裂韧性低，脆性大。
Most weak point of the ceramics tool is break, low toughness, high brittleness.
分析了轿车地毯材料的强度、塑性和断裂功等成形性能受尺寸的影响程度。
The effect degree of size on its strength, plasticity and work of rupture is analyzed.
对定向断裂复合材料的结构、功能进行了设计和分析，以求达到最优效果。
The best effect is achieved through the analysis and design of structure and function.
对定向断裂复合材料的结构、功能进行了设计和分析，以求达到最优效果。
The best effect is achieved through the analysis and design of structure and function.
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