1.Work objectivesAdhering to the principle of putting people first and life first, deeply learning from the lessons of recent open-pit mine accidents, we plan to use three years to basically establish...

The Beidou Ground Based Augmentation System has now provided basic services. In order to better serve users, the China Satellite Navigation System Management Office has released the "Beidou Groun...

Congratulations on the successful completion of the settlement monitoring of the elevated bridge in Jixi City, Heilongjiang Province. Our instrument can withstand the coldest test. My colleagues, you ...