insulating layer of pipe的意思|示意

The characteristics of polyurethane foam used as insulating layer of prefabricated directly buried insulating pipe are introduced.

介绍了作为预制直埋保温管保温层的聚氨酯泡沫塑料的特性。

Findings show that, for be in the wrong frozen soil wrought in favor of thermal disturbance, insulating layer thickness respond adopt dam insulating pipe hull skin temperature 'calculation procedure.

研究结果表明，为不对冻土造成较大热扰动，保温层厚度应采用控制保温管外表面温度的计算方法。

The cross sections of the plastic pipe, the heat-insulating layer and the aluminum foil are round as optimization, and the heat-insulating layer is made of PE foam materials.

作为优选，所述塑料管、保温层和铝箔的截面为圆形，保温层为PE泡沫材料。