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Errors in radiometric measurements. Sensitivity and background of Radiation Detector. The main source of errors in radiation detector measurements are: 1. Instability of equipment parameters.

On August 14, a batch of single hydraulic prop equipment for mining is loaded in the intelligent equipment manufacturing workshop of China Coal Group and sent to Jincheng City and Luliang City, Shanxi

On August 12, a batch of Mining Bucket Tipping Cars and mining material Cars were loaded in the intelligent equipment manufacturing workshop of China Coal Group and will be sent to a mine in Jincheng,

On August 3, a batch of mining single hydraulic props and mining flatbed products were loaded into the intelligent equipment manufacturing workshop of China Coal Group, and then sent to two major mine

In order to regulate unmanned aircraft’s operational flight activities and promote the safe, orderly and healthy development of the unmanned aircraft industry, the Civil Aviation Administration of Chi

On July 13th, a batch of mining unit hydraulic props ordered by merchants in Fugu County, Shanxi Province, and mine flatbed cars ordered by merchants in Ningxia have been loaded and shipped in the Chi