Because the bolts in the flange connecting the electromotor of lifting dolly and retarder had failed, a bridge erector overturned.These bolts were carefully analyzed.
英
美
释义
摘要对引起架桥机倾覆的起重小车电动机与减速器的连接部位断裂螺钉进行了宏观和微观分析。
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