标位浮标
marker buoy [= marine buoy
watch buoy
定位浮标
positioning buoy
watch buoy
marker buoy [= marine buoy
单站球坐标定位法
single station spherical coordinates localization algorithm
气浮定位平台
Air-bearing positioning stage
应急无线电示位浮标
emergency position indicator radio beacon
（层位标定）
business-oriented pattern