A universal design scheme of automatic open-and-close mechanism for front cover of autonomously developed streamlined train head is proposed.

提出了目前我国自行研制的流线型列车头部端盖自动开闭机构通用设计方案。

youdao

A universal design scheme of automatic open-and-close mechanism for front cover of autonomously developed streamlined train head is proposed.

提出了目前我国自行研制的流线型列车头部端盖自动开闭机构通用设计方案。

youdao