火车提速用英文怎么说

speed boost of reilways

中国日报：
Wednesday marks the the beginning of the sixth "speed boost" of Chinese railways, which has been hard-pressed to cope with the country's hunger for bigger transport capacity.

Train Speed Increase

有好几种说法：

acceleration / precipitation

to accelerate the speed

to speed up

to accelerate

to pick up speed

to step out

The train will speed up .