Wellhead auxiliary positioning device of spent fuel vertical shaft and positioning label auxiliary mounting system

The utility model discloses a spent fuel vertical shaft wellhead auxiliary positioning device which comprises at least three supporting arms, the first ends of the supporting arms are connected, center mark points are arranged at the connecting positions of the supporting arms, the second ends of th...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LEI HU, XIANG JIANCHAO, ZHENG CHAOJI, LI HAN, YANG HEFAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	GYROSCOPIC INSTRUMENTS MEASURING MEASURING ANGLES MEASURING AREAS MEASURING DISTANCES, LEVELS OR BEARINGS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SURVEYING TESTING
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