但有的不是普通的液压油，高级一点的是专用的减震油，工作原理同液压油类似。

But some hydraulic oil is not common, is the high point of the special damping oil, hydraulic oil with the principle of similar.

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本文的定量研究为抽油杆减震器在工程中的应用提供了理论支持。

So the theory to the application of rod string absorber in engineering is provided.

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本文的定量研究为抽油杆减震器在工程中的应用提供了理论支持。

So the theory to the application of rod string absorber in engineering is provided.

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