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。 - 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。 - 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。 - 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 - Analysis of assembly welding techniques for center sill and underframe of the 18.4 m container flat wagon
18.4m集装箱平车中梁、底架组焊工艺分析 - The center sill of railway wagons underframe is the major component of bearing wagon, but also the major component of bearing traction during transport. Center sill quality directly affects the performance of wagon and traffic safety.
铁路货车车体底架的中梁是车辆承载的主要部件，也是车辆在运输过程中承受牵引力的主要部件，中梁的质量直接影响到货车的使用性能和行车安全。 - Analysis of the Optimized Model Selection of Large Underframe on Schnabel Car Type D 38
D（38）型钳夹车大底架结构优化选型分析 - Early diesel loco often is designed as lower power and running speed with stronger underframe strength, but as higher diesel power and running speed is needed, advanced weight-lighten requirements was raised up.
早期内燃机车功率小、运用速度较低，车体底架强度设计得很大。随着机车功率的加大和运用速度的提高，对机车车体轻量化提出了较高的要求。 - The Finite Element Calculation on the Underframe Strength of Railway Tank Cars
铁路罐车底架的有限元强度计算 - Problems Existing in the Underframe Structure of the K Type Coal Hopper Car and Suggestions for Improvement
K型煤炭漏斗车底架结构存在的问题及改进建议