direct buried cable 直埋电缆
direct buried transformer 直埋式变压器
direct-buried insulation pipe 直埋保温管道
direct buried 直埋安装
direct buried pipe 直埋技术
direct buried tube 直埋管道
direct-buried bolts 直埋螺栓
The goal of lower cost and lower line lost and safety and reliability can be achieved by choosing rural direct-buried cable in rural LV line.
农网低压线路选择农用直埋电缆可以实现造价低、线损小、安全、可靠的目的。
Develops the two dimensional mathematical models for direct-buried pipes and in-duct pipes and solves them using the boundary discretization method.
建立了供热管网直埋、地沟敷设管道的二维数学模型，通过边界离散方法进行了求解。
In the paper, a technological economic analysis is made as well to compare the twisting thermal insulated direct-buried pipes with underground tunnel laying ones.
文中还对热缠绕直埋保温管与地沟敷设保温管做了技术经济分析。
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