So in forward flight each rotor can produce an equal amount of lift on each side, thus providing balance.

因此在向前飞行时，旋转叶片可以在每一边产生相同大小的升力来进行机身的平衡。

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The aerodynamic fine tuning in the front and rear areas is designed to guarantee an optimum balance in the lift coefficients at the front and rear axles.

对新款车的前后区域均进行了空气动力学微调，这样做旨在确保最大限度地平衡前后轴的升力系数。

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Secondly, a simplified ship lift model is founded including the balance weight subsystem, the lift subsystem and the ship-chamber subsystem.

其次，建立了一个含平衡重子系统、主提升子系统和船厢子系统的简化升船机模型。

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Many disabled people do not have the body strength to twist, pull, lift or balance objects the way able-bodied people do.

BBC: Disabled at risk at home

In other displays, men used their teeth to pull cars, lift bicycles and balance plows.

WSJ: At These Olympics, It Helps

They say U.S. policymakers will need to lift taxes and cut spending to balance the federal budget, which has swung from a surplus of 2.5 percent of gross domestic product (GDP) in 2000 to a deficit of just under 4 percent in 2003.

CNN: IMF: U.S. needs to balance budget