The power grid simulation technology began to continuously output to the outside world. On June 15th, China Southern Power Grid Research Institute and the Brazilian State Power Dispatching Center (ONS) formally signed the "Multi-DC Feed-in System Simulation An…
(1) Large equipment;
(2) Automation of the grinding production process;
Larger equipment can reduce the number of equipment, save floor space, save materials, ene…
After fresh fruits and vegetables are harvested, they will still undergo respiration, and different species and sizes of fruits and vegetables will have different respiration. Since respiration has an important impact on the storage of fruits and vegetables, in order to reduce lo…
Article 9 The following materials shall be submitted for the change of the qualification certificate of the mine manager:
(1) Application form for the change of the qualification certificate of the mine manager (in triplicate, see Annex 2);
(B) the coal production license of…
At present, China's power station boiler fans, especially primary fans, have a high energy consumption and noise problem during operation. In North China Power Grid, a number of power plants have applied frequency conversion governors to the centrifugal primary…
When it comes to the high yield and quality of crops, it will surely speak of the soil moisture situation. When it comes to water-saving irrigation, the cost-effectiveness of agriculture can also avoid the problem of soil moisture, and how can soil moisture be judged? How can we …