overhead pipeline system 架空热力管线
heating overhead pipeline 热力架空管道
thermal overhead pipeline 热力架空管道
overhead d pipeline 架空管道
overhead gas pipeline 架空燃气管道
Overhead oil pipeline 架空原油管道
Thermal overhead pipeline system is widely applicable for petrochemical and city heat supply engineering.
热力架空管道系统在石油化工和城市供热工程中得到了广泛的应用。
Three calculation methods have been used to study waxy oil temperature drop after shutdown for both buried pipeline and overhead pipeline.
本文用三种计算方法研究了埋地和架空管线中多含蜡原油管道停输后的温降，并与现场实测结果作了初步比较。
For overhead pipeline, welding with basic-compound coated electrodes and pre-welding heating of the joint will reduce the joint thermal -stress.
采用碱性药皮焊条和焊前接头预热的施焊方法，焊接的空间管道接头热应力小。
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