在寒冷的季节中，室外压缩空气管线中的液体水会冻结，引起管道堵塞或爆裂。
During the cold seasons, outdoor compressed air of liquid water will freeze pipeline, cause blockage or burst pipe.
进行室外污水重力排水设计、施工时，遇到复杂地形或管线较长时，既费成本又废心血。
It took costs and pains to design and construct the outdoor gravity drainage system when complicated topography and longer pipelines were encountered.
一种富氧空调器，属于空调器技术领域。它由室外机、室内机及其管线构成。
The utility model relates to an oxygen enriched air conditioner belonging to the technical field of air conditioner, which consists of an outdoor machine, an indoor machine and a pipeline.
一种富氧空调器，属于空调器技术领域。它由室外机、室内机及其管线构成。
The utility model relates to an oxygen enriched air conditioner belonging to the technical field of air conditioner, which consists of an outdoor machine, an indoor machine and a pipeline.
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