试验证明该理论可行并能用于研究无铰旋翼结构参数对桨叶气弹稳定性的影响，也能用于直升机旋翼的型号设计。

The experimental results verify that the feasible theory can be used to investigate the effects of structural parameters of hingeless rotor on aeroelastic stability.

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文章详细阐述了该抽油机的工作原理、结构设计、型号和特性参数。

The paper introduces the work principle, structure design, type and parameters of the new intelligent pumping unit.

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研究了航空型号项目的WBS结构，工作包的参数计算、资源估算和工作责任矩阵；

Then, the WBS structure of aviation project is researched. The parameter calculating, the method of resource estimating, and responsibility assign matrix of the work package is provided.

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