This paper give a details anylysis of its tamping course, and proposed that the strike energy and frequency can be adjusted independently and steplessly by the impacting pressure of timely adjusting hydraulic system of the vertical post resistance, and set up the nonlinear mathematical model.
基于液压夯拔装置的结构与工作原理，深入分析了液压夯拔装置夯入过程，提出了利用立柱阻力适时调节系统的冲击压力，可实现冲击能和冲击频率的独立无级调节。
参考来源 - 基于压力反馈控制的液压夯入冲击系统的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
A vertical post at the corner of a bed.
在转角处有一家邮局。
So that analysis methods also applies to other press with vertical post.
本文采用的分析方法对其它立柱式压机同样适用。
As soon as she was sure, she swam to the bridge and then to the nearest vertical post. She touched it and pushed her hand upward.
这样确定以后，她便游向行人桥，来到最近的一根直立的支柱，手碰支柱往上顺去。
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