照准仪
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照准仪；森林火灾测位仪；[化] 照准仪
n. surveying instrument consisting of the upper movable part of a theodolite including the telescope and its attachments；n. surveying instrument used with a plane table for drawing lines of sight on a distant object and for measuring angles
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照准仪；森林火灾测位仪；[化] 照准仪
n. surveying instrument consisting of the upper movable part of a theodolite including the telescope and its attachments；n. surveying instrument used with a plane table for drawing lines of sight on a distant object and for measuring angles
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