Laser limiting device

The utility model discloses a laser limiting device, which relates to the technical field of roadway construction equipment and comprises a flat plate, a hollow cut is arranged on the surface of the flat plate, a limiting ring is fixedly connected to the inner wall of the hollow cut, a hanging ring...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SONG SHIJIE, YANG QUNSHAN, WANG ZHONGYU, YAO MINGWANG, YANG YANG, HUANG HAO, SUN CONG, ZHANG CHAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES GYROSCOPIC INSTRUMENTS LARGE UNDERGROUND CHAMBERS MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS MINING NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SHAFTS SURVEYING TESTING TUNNELS
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