pipe and line underground的意思|示意

No underground pipe-and-line-works shall be laid and buried within the planned red line of expressway and fast lane of Grade a highway.

在高速公路的规划红线内和一级公路的快车道内，不得埋设地下管线。

The paper introduced the design and rational selection of control points of Xiamen underground pipe line measure control network as well as some problems about field observation and data treatment.

本文重点介绍了厦门地下管线测量控制网的设计及控制点的合理选取、外业观测和数据处理等问题。