On the early morning of March 22nd, the Dresdner 550N mechanical road surface cold regenerator steadily climbed onto the transport vehicle and rushed to Hebei to add a German work force to the infrastructure of the raging Xiong'…
Many people think that fruit and vegetable products have no life activities after they are picked, but in fact, whether it is new fruits and vegetables products that are harvested or pre-processed products, they are all life-sustaining. Respiratory process. The respiration of fru…
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Name: Du Yuntao
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The mass distribution of ore in any mine within the scope of a full deposit is always uneven. In order to ensure normal production and beneficiation plant, good technical and economic indicators, …
(1) Open pit mining
At present, most of the weathered and stacked manganese oxide ore is open-pi…
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In the past five years, China's auto manufacturing industry has grown at a rapid rate, and the objective profit figure in the auto market has reached RMB 230 billion. However, the proportion of domestic automobile services in the enti…
According…