Riders may find themselves inching along behind a lumbering freight train for miles at a time, until the route reaches a side track on which the Amtrak train can pass.
旅客有时会发现列车在木材运输列车之后缓慢爬行数英里，直到遇到美国国铁列车可以通行的侧轨。
It solved the difficult problems of thermal insulation or separate steam injection in general steam injection well, separate steam injection well, and side track well.
它解决了普通注汽井、分层注汽井和侧钻井的隔热或分层注汽的难题。
It solved the difficult problems of thermal insulation or separate steam injection in general steam injection well, separate steam injection well, and side track well.
它解决了普通注汽井、分层注汽井和侧钻井的隔热或分层注汽的难题。
应用推荐