The problem of fixed-point motion of symmetrical rigid-elastic system in gravitational field is studied in this paper.

本文研究了怕对称刚-弹系统在重力场中的定点运动。

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By use of the variational method, the potential energy principle of a elastic system on a variable domain is discussed.

并用该变分法讨论了具有可变区域的弹性系统的势能原理。

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It is shown that it is an effective measure to link elastic elements to the elastic system of the warp Sheet and fabric in present looms.

就解决稀密路横挡在机构方面采取的措施作了研究探讨，结果表明在现有织机的上机弹性系统中串联弹性元件是一种有效的方法。

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We call that operating system elastic to signal the way that it breaks with the scale economics of the 20th and early 21st centuries.

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Furthermore, Wilson, the only president with a doctorate, tried to use the newly created Federal Reserve system and an elastic money supply to keep inflation in check, but the U.S. still saw double-digit inflation from 1917 to 1920.

WSJ: Checks & Balances | Museum of American Finance | Of Debt and Taxes | By Mark Yost

What Nick Vitalari and I described in The Elastic Enterprise is a new wealth creation system.

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