The working principle of the passive infrared detector is mainly based on the infrared spectrum generated by the human body. In the natural world, any object above the absolute temperature (-273 degrees) will produce infrared spectrum, in the passive infrared warning zone, when there is no When th ---MORE---
On September 17, 2019, the third Jiangsu “*美农机åˆä½œç¤¾â€ “*美农机手†“*ç¾ŽåŠ æ²¹å‘˜â€ selection and commendation event was held in Jiangsu Agriculture and Forestry Vocational and Technical College. More tha ---MORE---
There is a cloud in the old saying that the monofilament does not become a single tree. This sentence applies not only to teamwork, but also in the trucking industry. There are both "snoring brothers, fathers and sons" strategy, and the group "CP" strength is bursting. Tod ---MORE---
The fuel truck is a "small gas station" that can flow, it has the advantages of strong mobility, low investment and high profit. The emergence of fuel trucks has greatly facilitated our lives, saving time and improving work efficiency for those wh ---MORE---
On September 22nd, the China Agricultural Mechanization Association held a symposium to celebrate the 70th anniversary of the founding of the People's Republic of China on the development of agricultural mechanization in Beijing. The conference invited Gao Peng to gather elites from the indust ---MORE---
The thermal shock test machine is a very sophisticated test instrument. It has certain requirements for the use of the storage environment. It will emit a certain sound during the operation. In order to reduce the impact of noise on the surrounding environment, it is generally recommended to place ---MORE---
The flammable gas alarm is also known as a fixed gas detector. It is mainly composed of an alarm device and a detector. It is installed in a fixed area to monitor the concentration of flammable gas in the range. To use a flammable gas alarm, you must first learn to install it properly and install ---MORE---