High-precision plumb bob for building

The utility model discloses a high-precision plumb bob for a building. The line pendant comprises an infrared emitter, a cover body and a line pendant head provided with a cavity and an emission hole,and is characterized in that the lower end of the infrared emitter is provided with an infrared emis...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	HU GUOQIANG, GU MENGFEI, YING WENLIN, XIANG CAIPING, WANG WEIQI, YING WEIBIN, WANG WENWEI, JIANG YANWEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	GYROSCOPIC INSTRUMENTS MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SURVEYING TESTING
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