搜索优化
English
搜索
Copilot
图片
视频
地图
资讯
购物
更多
航班
旅游
酒店
房地产
笔记本
Top stories
Sports
U.S.
Local
World
Science
Technology
Entertainment
Business
More
Politics
时间不限
过去 1 小时
过去 24 小时
过去 7 天
过去 30 天
按相关度排序
按时间排序
Scientific American
3 年
Improvement in Railroad Switches
The rock shaft is operated by a lever upon which the switch tender places his foot, as shown in the larger engraving. When this lever is depressed, the angular projection upon which the rail rests ...
Railway Age
10 天
White Paper: Heavy Point Switch®
The results indicated that clothoidal geometries reduce the forces created between the wheel and rail by up to 30%. Further, ...
NL Times
1 天
Train services reduced near Eindhoven due to track switch malfunction
Train services around Eindhoven were significantly reduced Sunday due to a malfunctioning track switch near Deurne, ProRail ...
OregonLive.com on MSN
3 个月
Union Pacific train derailed after Klamath Falls man tampered with track switch, police say
A Klamath Falls man is accused of trespassing at a local Union Pacific Railroad yard and changing track settings that caused ...
trains
11 天
Incorrectly lined switch led to collision of UP trains at yard in Texas, NTSB determines
An incorrectly lined switch — the result of an error by a crew member of a train not involved in the incident — led to a ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果
反馈