Basis on the analysis of system frame and runningcharacteristic of BLDCM, optimization method for system efficiency is presented.
在分析BLDCM系统结构和运行特点的基础上，提出系统效率优化的方法。
2
The article puts forward the design method of grade in marshalling yard, pass to analyse the runningcharacteristic of different wagons in marshalling yard.
通过分析不同车辆在调车场内的走行特性，提出点式控制调车场内的坡度设计方法。
3
The article puts forward the design method of grade in marshalling yard, pass to analyse the runningcharacteristic of different wagons in marshalling yard.