术语平整建管带表示，平整建管带地表面以允许车辆和设备的运输和操作，并允许在希望的高程处放置管道。
The term grading means leveling the ground surfaces as needed to permit transit and operation of vehicles and equipment and to permit placement of the pipeline at the desired elevation.
术语平整建管带表示，平整建管带地表面以允许车辆和设备的运输和操作，并允许在希望的高程处放置管道。
The term grading means leveling the ground surfaces as needed to permit transit and operation of vehicles and equipment and to permit placement of the pipeline at the desired elevation.
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