The application of the national standard coordinate system and its elevation datum point has greatly promoted the development of surveying links in topographic surveys and mineral exploration projects
With the further development of the market economy, China's demand for energy will continue to increase, making supply unable to meet demand, and its contradictions will become increasingly fierce. Th
As an indispensable and important factor for China's economic development, mineral resources are closely related to China's sustainable development. Under the influence of the new era, in order to ada
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Coal mining has a long history in China. According to historical records, since the Song Dynasty, China has had a relatively complete coal mining process. Therefore, China's coal mining technology has
