三角测量法距离感测器
triangulation distance meters
测距方法
distance measuring method
distance survey
ranger-indicate
ranging method
长距离测量
remote distance measurement
long range measurement
故障测距方法
fault range-measurement method
光学距离测量
optical distance measurement
假距离测量
spurious range measurement
经纬仪仪量距测量
transit-and-chain surveying
距离测量电压
distance measurement voltage