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。
After leveling the ground, the ground beam is paved, and then the ground board is installed on the ground beam according to the sequence of driver and slaver.
地面清理平整后，铺设地梁，然后按照公母次序在地梁上安装好地面板。
The massive earthquake brought down a landslide this beautiful mountain valley in the Padang Pariaman region of West Sumatra, leveling the ground and turning it into a wasteland .
强震引发土石流，曾经位在西苏门答腊巴东帕里亚曼，如画的山林美景，如今被厚重的黄土夷为平地。
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