Described are the development target, main technical features and parameters, main structure, finite element calculation results and testing of the 4d-axle welding frame type bogies.
介绍了4d轴焊接构架式转向架的研制目标、主要技术特点和参数、主要结构、有限元计算结果及试验情况。
The key to a successful calculation and prediction of welding process by mathematical model method is the selecting of an appropriate model and its parameters.
用数学模型方法进行焊接过程的计算和预测，关键是选取合适的计算模型和模型参数。
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