介绍了下交叉支撑转向架的结构特点和关键技术参数，对侧架导框的加工、侧架与支撑座的组焊和转向架的组装工艺等着重进行了分析。

Mainly analyzed are the technologies in processing of side frame guides, assembly by welding of the side frame and braced seat, and assembly of the bogie.

youdao

介绍了下交叉支撑转向架的结构特点和关键技术参数，对侧架导框的加工、侧架与支撑座的组焊和转向架的组装工艺等着重进行了分析。

Mainly analyzed are the technologies in processing of side frame guides, assembly by welding of the side frame and braced seat, and assembly of the bogie.

youdao