| 释义 |
drawbar
\ˈ ̷ ̷ˌ ̷ ̷\ noun
1. : a removable bar in a fence
2.
a.
(1) : a bar that is used to connect a steam locomotive and tender and is secured in the drawhead of the locomotive by a pin
(2) : a railroad coupler — not used technically
b. : a beam across the rear of a tractor to which implements are hitched
3. : a clay block submerged in molten glass in a tank furnace for controlling the position of sheet glass during drawing |