其中之一是每支铁杆都采用了多功能杆底设计。
One of them is iron each have adopted a multi-functional sole design.
其中之一是每支铁杆都采用了多功能杆底设计。
One of them is used each iron rod at the end of the multi-functional design.
为降低或消除这两种减振器噪声，提出了对减振器内部结构如活塞阀系统、底阀系统以及活塞杆等的设计要求。
To avoid these two kinds of noise, the paper gived some requirements to the internal structure design of shock absorber, such as piston valve system, bottom valve system, piston rod etc.
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