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GABION CRATES OR WIRE CRATE ARE ALSO USED AS A PROTECTION WORK FOR PROTECTING LARGE MASSES OF EARTH. THEY CAN BE USED AS RETAINING AS WELL AS BREAST WALL. WIRE CRATES ARE AVAILABLE IN DIFFERENT SIZES AS PER THE SITE REQUIREMENTS. WIRE CRATES ARE MOSTLY ZINC COATED SO THAT RUST DOESNOT AFFECT THEM. WIRE CRATES ARE EASY TO LAY AND EFFECTIVE IN WORK. STONES ARE PACKED IN LAYERS IN WIRE CRATES AND WHICH IS EVENTUALLY LOCKED BHY JOINING WIRES MAKING IT AS A COMPLETE STRUCTURE.
A theodolite is a precision instrument for measuring angles in the horizontal and vertical planes. Theodolites are mainly used for surveying applications, and have been adapted for specialized purposes in fields like metrology . A modern theodolite consists of a movable telescope mounted within two perpendicular axes — the horizontal or trunnion axis , and the vertical axis. When the telescope is pointed at a target object, the angle of each of these axes can be measured with great precision, typically to seconds of arc.
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