注意： 如果选取多条管线并且此选项页上有数据（不是“管线类型”(Pipeline Type) 选项中的缺省值“普通”(General)），会打开信息对话框，其中会有以下消息：
基于8个网页-相关网页
本文首先对管网工程涉及的管线类型、施工方法进行了介绍，然后通过对一工程实例的介绍来论述当今管线勘察工程所具有的新特征。
Above all, the article introduces the type of pipelines and means of construction, and then presents some new characters of pipeline works today by one example.
本文从晶粒尺寸、夹杂物形态和大小以及组织结构类型等几个方面论述了管线钢韧性的控制或影响因素。
From the aspects of grain size, impurity shape and size, structure type and so on, the control or influence factors of pipeline toughness are discussed.
针对玻璃厂的管线特点，研究了一种新型管道支架的设计方法，与其它类型的管线安装方式进行了比较。
A new design method for pipe bracket was introduced directed towards the pipeline characteristic in glass factory. A comparison of installation way was made with other type pipelines.
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