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.

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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.

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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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