箱形梁是集装箱吊具的重要受力部件，对焊接质量要求高。
The box beam was one of the most important stress parts of the crane which required high quality butt weld.
对650轧机关键受力部件——滑块式万向接轴进行强度分析计算。
Focuses on the strength analysis of slipper type universal coupling which is the 650 rolling mills key load-supporting structure.
通过对鼓式制动器的受力分析，建立了其关键受力部件的力学模型。
This article analysed the loads of the drum brake and built the key brake's mechanical model.
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