Nderground pipelines

• 埋地管道

Nderground pipelines的用法和样例：

例句

1. Samples from heat-concomitance pipes of spot buried pipelines were processed to make test pieces and tested by a corrosion speed measurer.
   从现场埋地管道的伴热管取样，经过加工做成试件，利用腐蚀速度测试仪进行测试。