激光平地技术从70年代开始首先在美国应用,随后在西方国家得以大面积推广。我国曾将激光平地技术列为“九五”攻关项目。激光平地技术能够大幅度地提高土地平整的精度,激光感应系统的灵敏度至少比人工肉眼判断和操作人员手动控制的准确度 Laser flattening technology was first applied in the United States from the 1970s onwards, and then was widely promoted in western countries. Our country has laser technology as a “nine five” key project. The laser leveling technology can greatly improve the leveling accuracy of the land. The sensitivity of the laser sensing system is at least better than the artificial visual judgment and the operator’s manual control accuracy