中文翻译与英英解释 | surveying instrument used with a plane table for drawing lines of sight on a distant object and for measuring angles
同义词：alidad,
| | surveying instrument consisting of the upper movable part of a theodolite including the telescope and its attachments
同义词：alidad,
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| An alidade (archaic forms include alhidade, alhidad, alidad) or a turning board is a device that allows one to sight a distant object and use the line of sight to perform a task. This task can be, for example, to draw a line on a plane table in the direction of the object or to measure the angle to the object from some reference point. |
例句与用法 | 1. | The test of dj6 theodolite eccentricity of alidade
6型经纬仪照准部偏心差的检验
| | 2. | Eccentricity of alidade
照准仪偏心率
| | 3. | Tube - in - sleeve alidade
转镜照准仪
| | 4. | Fixed tube alidade
定镜照准仪
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