其次，初步开发了梯级的参数化有限元分析系统。
Secondly, it develops the initial parametric finite element analysis system of a step.
本文简单介绍了凰岗梯级的基本特点和工程情况。
Basic feature of the latter one and engineering conditions are briefly introduced.
由于梯级数量众多，又是经常运动的部件，因此一台自动扶梯的质量在很大程度上取决于梯级的结构和质量。
Due to the large number of steps, but also regular exercise components, so the quality of one escalator step depends largely on the structure and quality.
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