Based on road design information, we derived coordinates of arbitrary points in the pile and cross-sectional azimuth which may guide global positioning system (GPS) surveying in section surveys.
The layout of plan surveying lines, principle of instrument selection and the key points of working are described detailedly, which gives a guide to actual work.
对布线方法、仪器选择原则及作业关键点进行较详细的说明,对海底管线综合物探作业给与了指导。
3
The pressure distribution in the end clearance of hollow guide-vane and solid guide-vane is obtained by surveying the pressure in the end clearance under the conditions of clean water and muddy water.