这些大草原是一大片一大片较为平坦的土地。
The factor influencing laser level land technology popularization, and the suggestion while using.为此,论述了影响激光平地技术推广的因素,提出了其在使用中的建议。
The laser level land is essential a high-efficient level land technology in agriculture water-saving irrigation in the future of our country.激光平地在我国今后的农业节水灌溉方面,是一项必需的高效平地技术。