可动翼轨辙叉的英文：
movable wing rails；movable-wing frog

movable是什么意思：
n. 家具,动产
a. 可动的,动产的,不定的

movable vice jaw
活动钳口

This limitation was overcome with the invention of movable type.
随着活字的发明，这一障碍得取了克服。

A medieval light helmet with a neck guard and movable visor.
头盔中世纪有护颈和活动护面的轻便头盔

wing是什么意思：
n. 翅膀，翼，机翼

Riches have wings
财富难保

the flutter of wings
翅膀的拍动

Wing to wing,inseparable lovers,such happy couple
比翼双飞，比翼鸟

rails是什么意思：
n. 铁轨；横杆，扶手；抱怨，痛斥

To supply or enclose with rails or a rail.
用栏杆围提供栏杆或把栏杆围起来

The coal will be shipped by rail.
这些煤将用火车装运。

Trains run on rails.
火车在轨道上行驶。