in-train repair的意思|示意

In China, the train section signal facilities are integrated to put them in the house in order to facilitate the repair and maintenance.

我国的铁路区间信号设备采用集中放置于室内的形式，这对系统的维护和维修提供了很大的方便。

Researchers are hopeful they can train these primordial cells to repair damaged organs in need of healthy cells.

因此研究人员希望能利用原始干细胞修复损坏的器官。