- Model NO.: GL-300 …
The invention relates to a method of recovering copper , the method comprising the steps of:
(a) biologically oxidizing copper sulfide concentrate in the form of a slurry to dissolve copper into soluble copper sulfate;
(b) subjecting…
Japanese automakers have to accelerate the production of electric vehicles in China because the Chinese government has introduced new regulations for the strict air pollution problem, requiring companies to produce a certa…
Recently, with the approval of the Department of Human Resources and Social Security of Anhui Province, Quanchai applied for the establishment of a postdoctoral scientific research workstation .
Postdoctoral research workstations refer to org…
| Four-wheel steering |
The so-called four-wheel steering mean… Transplanting tomato seedlings is a new technique for tomato cultivation. It has the advantages of wide cutting sources, easy collection, convenient transportation in different places, fast seeding process, and small area for seedlings, which can effectively provide a large numbe… Digital Control Servo System Design [25] The control system mainly includes the following components: a detection device that detects the position and speed of the tool and the workpiece. The pulse encoder and the inductive synchronizer can be used to detect the rotary motion and the linea… In 2007, the proportion of industrial coatings in the paint industry in China increased. In the future, the R&D and application hot spots in China's paint industry will focus on five major areas including anti-corrosion coatings, coil coatings, functional coatings, powder coatings, and …
May 4, 2019 is the 100th anniversary of the May Fourth Movement. It is a festival for the majority of young people.
Yan Jianbo, secretary of the party committee and chairman of the Fast Group, went to the Xi'an high-tech factory to investigate and guide the work,… |