价格弹性曲线正在不断变化。

Price elasticity curves are changing.

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与机械弹簧不同的是，气弹簧具有近乎线性的弹性曲线。

The difference is that with mechanical springs, gas springs with near linear elastic curve.

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本文基于梁弯曲变形的小挠度线性理论，提出了半挠性喷管挠性板弹性曲线的计算方法。

A method of calculating elastic curve for semiflexible plate wind tunnel nozzle has been presented, based on the linear theory of small deflection of beam deformation, in this paper.

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