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单词 cross-staff
释义 cross-staff
\ˈ ̷ ̷ˌ ̷ ̷\ noun
1.
 a. : a processional staff usually with a cross or crucifix borne before an archbishop in his own province
 b. : crosier
2. : an instrument once used at sea for taking the altitudes of celestial bodies, especially of the sun
3. : a surveying instrument for laying off offsets perpendicular to the main course and consisting of two pairs of sights at right angles to each other on a staff sharp at the end
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更新时间:2024/12/24 2:13:19