A new railway operating plan has increased the country's passenger and freight train capacity, according to China railway Corp.

中国铁路总公司表示，新的铁路运行图提高了我国客运和货运列车的运力。

youdao

The design plan of cleaner used for finished product of railway bearing was introduced. The electric operating principle of PLC system together with its significance was also expounded.

主要介绍了铁路轴承成品清洗机的设计方案和PLC控制的电气工作原理和意义。

youdao