noun🔗Share照准仪， 瞄准器. A sighting device used for measuring angles."The surveyor used the alidade on the plane table to sight the distant building and determine its angle relative to their current location. "测量员在平板仪上使用了照准仪，瞄准了远处的建筑物，并确定了它相对于他们当前位置的角度。technologydevicescienceChat with AIVocabulary GamePractice Reading
