In a design of reconstructing a stair into an escalator, the headroom of the escalator should be thought over when the escalator is decided to be disposed in cross or parallel.
在对某楼梯改造为自动扶梯的工程设计中，在考虑选用交叉布置还是平行布置时，应满足扶梯净空等使用要求。
In reconstruction and extension engineerings, the important point of bridge design is widening and reconstructing its bottom.
改扩建工程中桥梁设计的重点是其下部加宽改建方案。
Taking the CW6140-general machine tools as an example, the analysis and design methods of reconstructing the relay control into automatic control system by PLC were introduced.
以常用的CW6140型普通机床为例，介绍利用P LC把继电控制改造为自动控制的分析与设计方法。
Taking the CW6140-general machine tools as an example, the analysis and design methods of reconstructing the relay control into automatic control system by PLC were introduced.
以常用的CW6140型普通机床为例，介绍利用P LC把继电控制改造为自动控制的分析与设计方法。
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