how can we help you
Current protection is a very important protection measure in power distribution systems, and zero-sequence current protection and residual current protection are the two main protection methods. Zero-sequence current protection: In the power distribution system, when the three-phase currents are run...
In the semiconductor microelectronics industry, accurate and reliable temperature and humidity detectors are indispensable and important equipment. With the advancement of science and technology, this industry has increasingly strict requirements on the temperature and humidity of the production env...
Forests are one of the most important ecosystems on earth. They can not only absorb harmful gases such as carbon dioxide and oxygen, maintain the balance of atmospheric components, but also provide resources with extremely high economic value such as wood, medicinal materials, and nuts. Forest fires...
The gas meter is an important instrument for measuring gas usage , and its accuracy directly affects the interests of gas users. In order to ensure the accuracy of the gas meter, it needs to be calibrated regularly. However, during the actual calibration process, errors will occur, which will affect...
Mine mining is a comprehensive project involving many aspects. It not only includes public transportation, mining, ventilation, etc., but also includes enterprise management, blasting, machinery, ecological environment protection and many other contents. Compared with other industries, there are man...
Forests are one of the most important ecosystems on earth. They can not only absorb harmful gases such as carbon dioxide and oxygen, maintain the balance of atmospheric components, but also provide resources with extremely high economic value such as wood, medicinal materials, and nuts. Forest fires...
Ventilation ducts, referred to as air ducts, are metal or composite pipes used in ventilation and air-conditioning projects in industrial and civil buildings. They are a type of municipal infrastructure designed to circulate air and reduce the concentration of harmful gases. As a common product in o...
When it comes to construction in China, it is indispensable to talk about decoration, and the decoration materials of houses are a mixture of various organic compounds. After the decoration of the house, it often needs to be ventilated and left for a period of time before people can go in to work or...