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
- The structure design of bending portion of depressed center flatcar underframe is a key technological problem.
凹底平车的弓型凹底架，其弯角部的结构设计，是凹底平车设计中的关键技术问题。 - 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 - Development of Tank Car without Underframe
无底架罐车的发展 - 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 - 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 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。 - 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 - 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。 - Analysis of the underframe sinking of hydraulic support in fully mechanized mining face
综采工作面液压支架底座扎底分析