underframe
英
美
n. 底架（框）
复数：underframes 第三人称单数：underframes
英英释义
noun
- the internal supporting structure that gives an artifact its shape
- the building has a steel skeleton
双语例句
- In this paper, the recent development of coal car with aluminium carbody and advantage of coal car with channel form underframe and trend of reformation from steel carbody to aluminium carbody.
介绍铝制车体运煤车的最新发展，槽形底架煤车的优点，以及钢制车体煤车改造成铝制车体的动向。 - Then select the corresponding modules based on the underframe assembly into 3D models.
然后根据实际要求选择相应的模块，组装成底架的三维模型。 - Reason analysis of cracking in DPU-30 locomotive underframe and its improvement
DPU-30型机车底架裂纹和改进的分析研究 - With the finite element method, the comparison and analysis of structure strength with several schemes are made in structure type and dimensions of the depressed center underframe.
通过有限元对结构形式和尺寸进行了多方案结构强度比较分析，最后确定凹底架的结构形式为折角式。 - The article makes a description of assembly spot welding processes of the center sill and underframe, and the assembling techniques for the locking device and the wooden floor as well. It is instructive to the manufacture of XN 17A flat cars.
介绍了XN17A平车的中梁组焊工艺、底架组焊工艺、锁闭装置组装及木质地板组装工艺，对XN17A平车生产具有指导意义。 - Condition-based maintenance of locomotives Development of Tank Car without Underframe
机车的状态修无底架罐车的发展 - Optimization and Stability Analysis on Big Underframe of Large Scale Depressed Center Flat Car
大型凹底平车大底架结构的优化及稳定性分析 - Simulation Test and Research for Angle Scheme of Depressed Center Underframe of Depressed Center Flat Car Type D 26
D（26）型凹底平车凹底架折角方案模拟试验研究 - The paper presents the structure and manufacture requirements of the center-depressed underframe assembly for 320-ton center-depressed flat wagon.
介绍了320t凹底平车凹底架组成的结构及制造要求。 - The impacts of transverse and longitudinal shrinkage of welding seam on underframe positioning.
以及焊缝横向、纵向收缩对底架定位的影响。