采用大型养路机械开设综合维修天窗已成为铁路设备养护维修作业的主要发展趋势。
It has been a trend to adopt the comprehensive maintenance "window" by using large maintenance machinery.
但实际中却采用垂直“天窗”，使得维修效率低下。
The current vertical type maintenance gap adopted leads to lower maintenance effectiveness.
但实际中却采用垂直“天窗”，使得维修效率低下。
The current vertical type maintenance gap adopted leads to lower maintenance effectiveness.
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