movable point frog的意思|示意

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可动心轨辙叉

movable point frog的网络常见释义

可动心轨辙叉 组合辙叉 combined frog;assembled frog 可动心轨辙叉 movable point frog;movable-point frog 可动翼轨辙叉 movable wing rails;movable-wing frog ..

可动辙岔 ... 可动辙岔 movable point frog 可动轨条 movable rail 移动变动所 movable substation ...

movable point frog相关短语

1、 movable-point frog 可动心轨辙叉

2、 frog movable point 可动辙岔