Work conditions of pins in work attachment of loaders are analyzed in the article. Factors influencing the fatigue strength of pins were found out. Comparison tests were carried out on these factors.
分析了装载机工作装置销轴的工作状况，找出影响销轴疲劳强度的因素，并对这些因素进行对比试验。
Installation technology of well core tube in tower body was introduced, including construction with attachment tower cranes and high strength bolts.
介绍了塔身井道核芯筒安装技术，包括核芯筒内部附着式塔吊及高强螺栓施工。
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