roller track
... 滚轮对 pair of rollers 滚轮轨 roller track 滚轮架 turningrolls; wheel shelf ...
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滚轮导轨 ROLLER GUIDE ; RF
后导轨滚轮架 rear track roller frame
导轨滚轮舌形掣链器 CHAIN STOPPER
方型滚轮直线导轨 SG OSG
道岔尖轨滚轮 switch point roller
滚轮导轨装置 roller rail construction
轮轨滚动接触 wheel-rail rolling contact
抽屉底部设有滚轮轨道，抽屉板承载后仍能自如地拉动。
The drawer type rack was equipped with idler wheel rail on the bottom and the drawer panel could be freely pulled when carrying.
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