以170f柴油机为例，建立单质量、二质量和四质量三种配气机构动力学模型，并相应进行气门动态特性试验研究。
A 170f diesel valve train was taken as example, one-mass, two-mass and four-mass models were built and the valve dynamic characteristics experiment was also carried out accordingly.
将机械工程和土壤力学有机结合，对压实机—土壤系统动态特性进行研究建立了系统的动力学模型。
Combining the mechanic engineering with soil mechanics, the paper studies the dynamic characteristics of interaction between the compaction equipment and soil, dynamic model is set up.
目的探讨在不同认知作业状态下脑电非线性动力学特性的变化规律，以及脑电非线性动态分析在认知过程研究中的作用。
Objective To investigate the changes of non-linear dynamics properties of EEG under different mental tasks, and the application of non-linear dynamic analysis for cognitive function research.
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