4.They are surveying the land before it is divided into house lots.
他们要在土地被分割为住宅用地前先勘察这块土地。
5.VRS(Virtual Reference Station) represents GPS-RTK Technology,whose appearance would unitize all the surveying and mapping work in an area.
意思是虚拟参考站,它所代表是GPS网络RTK技术,它出现将使一个地区所有测绘工作成为一个有机整体。
6.The no staff and self-reducing tacheometer is a new type of surveying instrument designed and constructed by a group of teachers and students of our department.
无须跑尺自计视距仪是一种新式测量仪器,经过研究,我们已初步试制成功。
7.It's a mean of geotechnical investigation, including borehole surveying, costeaning, trenching exploration, test pitting, hole exploration, geophysical exploration and penetration sounding.