Powered back-up roll is an auxiliary device on veneer lathe.

动力压辊是单板旋切机上一个辅助装置。

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The temperature field of a large forged back-up roll during differential heating and cooling was simulated with a computer based finite element method.

利用热处理温度场的计算机模拟软件计算出大型锻钢支承辊锻件差温加热及冷却时的温度场。

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By analysis calculating bending strength of back-up roll, it can educe bending stress of end and body of back-up roll, and define weak spot that is both end of back-up roll.

通过支撑辊弯曲强度解析计算，得出支撑辊辊颈和辊身的弯曲应力，并确定此支撑辊的薄弱点在辊颈处。

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Jamison and Bryant hit back-to-back 3-pointers for the Lakers only to have Brian Roberts tie it up on a running finger roll.

NPR: Lakers Beat Hornets 104-96 To Stay In Hunt

He added that he hoped the two sides "don't get involved in some kind of typical Washington back-and-forth sideshow here and rather just ... roll up their sleeves and get to work" on writing a comprehensive immigration bill.

CNN: Immigration debate: high-stakes political poker

The big companies in back-office work are looking to roll up the smaller players.

FORBES: Magazine Article