Recently, Caterpillar announced that the "Dr. Hank Kaplan" tugboat has already held a nami...

(1) Overview: (1) This bottom structure, underground metal mines in our country which is widely us...

Experimental study on variable working conditions of quasi-secondary compressed air source heat p...

The parameters of the orthogonal hyperbolic gear pair: the axial distance E = ~85 °, the offset ...

At present, more and more LED displays have entered the interior, especially large-scale hotels an...

At present, China's new energy automobile market is still at the stage of development led by t...

Since the development method is determined by the main development of the roadway form, in order to ...

The bottom hole yard is connected with underground transportation and wellbore lifting, and the ore,...

The 2017 F1 British Grand Prix will be held at the Silverstone Circuit in Northampton, England from...

[ China Agricultural Machinery Industry News ] With the depletion of petrochemical energy, the deve...

China Fisheries Channel reported that modern fisheries are a high degree of integration of aquacul...

With the development of society, people's security awareness has been improved and various sec...