交通运输工程

• 初期

  The train speed increasing necessarily cause the descent of capacity of transportation, at the same time the raise of capacity can't show at the incipience of train increasing. And how to allocate the capacity for the passenger train and the freight train becomes a prominent question in this time.

  列车提速在提速初期,由于新旧设备整合、客货列车速差扩大等方面的原因,线路的运输能力反而会下降,这就使得客货车速度如何匹配的问题在这一时期尤为突出。

• 起始初发初期