觇标

chān biāo
  • target;beacon;surveyor's beacon
觇标觇标
觇标 [chān biāo]
  • [surveyor's beacon] 一种测量用的标志,架设在被观测点上作为观测、瞄准的目标

觇标[chān biāo]
  1. 此外,也可以使用常设的实体觇标。

    A standing opaque beacon may be useful in addition .

  2. 隧(巷)道测量瞄准误差与觇标选取

    Sighting error of tunnel surveys and the selection of targets