双语例句权威例句
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The microstructure, surface fracture morphology, hardness and tensile strength of the failed 45 steel connecting bolt were analyzed and tested.
对45钢连接螺栓断裂件的显微组织、断口形貌、硬度和抗拉强度进行了观察分析和测试。
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2 bolt force in poor condition, and the basic chassis connecting bolt section with larger diameter and base section of standard section and connecting bolt diameter smaller.
螺栓受力状况不良，底架与基础节连接的螺栓直径较大，而基础节与标准节连接的螺栓直径较小。
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The existence of reticulation and mass shape ferrite, decarbonization at the screw thread surface layer which induced decline of fatigue strength of connecting bolt were also…
此外，显微组织中网状、块状铁素体的存在以及螺纹表层脱碳使连接螺栓疲劳强度下降也是造成断裂的重要原因。
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