The paper introduces existing problems of the metrological work, the establishment of metrological assurance system and the quality system certification in the Datong Coalmines Group Co.
Successful French metrological diplomacy meant that in the ensuing decades the metric system supplanted a hotchpotch of regional units in all bar a handful of nations.
The current metrological verification system for traditional theodolite has disadvantages of large volume, low automation, inconvenient metrological operation and bad measurement repeatability.
This method applies to all theory problem, its research scope is much bigger than the metrological historiography.
A new digital speckle metrological technique called white light digital speckle photography is presented.
As far as we know, systematical study on metrological measure words which from Pre-Qin to Han, Wei, Jin and Nan-bei Dynasty is less researched in the interior.
The metrological apparatuses used in grain purchase shall meet the requirements of laws, rules and regulations.
In mid-September the Hangzhou Meteorological Bureau will at the Tiyu Park in northern Hangzhou and at the Yellow Dragon Stadium construct an automatic metrological station.
