Make use of drawers from an old dresser that's not being used. Install four rollers on an old dresser drawer, fill it up, and roll it under the bed.

利用以前旧的梳妆台的抽屉，在抽屉上安四个轴子，在里面放满东西，再把抽屉推到床底下。

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These bearings have no central rib on the inner ring and are therefore able to use longer barrel rollers.

这些轴承已没有中央肋骨的内圈，因此能够使用较长每桶辊。

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The machine-to-weight abrasive rollers to optimize the design of new equipment do not need to replace the use of life-long roller mill body.

本机对磨料辊体重新进行优化设计，设备使用终身不需更换磨机辊体。

youdao

Along with jammers, troops use air surveillance, robots, blast-resistant vehicles and mine rollers as countermeasures.

CNN: Jamming systems play secret role in Iraq