This paper describes the working principle of micro pulse displacement transducer, as well as its application on moving beam balance control system of 300MN hydraulic press.

论述微脉冲位移传感器的工作原理及其在30 0MN水压机活动横梁平衡控制系统中的应用。

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The paper describes the production's practice that is applied on the working-beam with downward beam balance for conventional walking-beam pumping unit's improvement on energy saving.

文章分析了游梁下偏平衡技术的平衡机理和结构受力特点，介绍了运用该技术对常规游梁式抽油机进行节能改造的生产实践。

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She almost started to fall from the balance beam but recovered herself in time.

她几乎从平衡木上掉了下来，但及时恢复了平衡。

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These gymnasts, I don't understand what they're doing. (Laughter.) I cannot even walk on a balance beam.

WHITEHOUSE: Remarks by the President at Campaign Event

But it amazes him that those young women can do what they do on the balance beam and the parallel bars and the vault.

WHITEHOUSE: Press Briefing by Press Secretary Jay Carney,

The 18-year-old Raisman, who also won a bronze medal on the balance beam, is the elder statesman on a team whose average age is just 16.

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