The working principle of passive infrared detectors and…

As the earliest type of security equipment, infrared detectors are also widely used in various aspects. According to their different performances, infrared detectors can be divided into active infrared detectors and passive infrared detectors. Give everyone the science of passive infrared detector ...more...

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Install the pest test light, the insect test report ste…

The prevention and control of pests should follow the principle of “prevention first, comprehensive prevention”. Before carrying out pest control, fully understand the occurrence and development of pests, which is the basis for the prevention and control of pests and the prom ...more...

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GB calibration method for dense paste pipe flow measure…

National standard calibration method for dense paste pipe flow measuring device The thick paste pipe flow measuring device is a flow meter specially developed for experimental research and engineering needs in the field of thick paste. The flow meter must be periodically calibrated before it can ...more...

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Agricultural mechanization standard preparation trainin…

From September 18th to 19th, the National Agricultural Machinery Standardization Technical Committee Agricultural Mechanization Subcommittee held a training course on the preparation of agricultural mechanization standards in Qiqihar City, Heilongjiang Province. This training course is one of the ...more...

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A series of activities to celebrate the 2019 China Farm…

On September 21st, a cultural performance featuring the theme of “Celebrating the 70th Anniversary of the Founding of the People's Republic of China and the Second Farmer Harvest Festival” was held in Gaohe Village, Shixia Town, Xihe County, Weinan City. This is an important measure ...more...

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Powerful and low fuel consumption Dongfeng Cummins ISZæ…

In recent years, the operation of goods has been tight, and more and more couples have appeared in the north and south of the motherland. The husband and wife car, as the name implies, is a couple pulling a truck to pull the goods, and the card replaces the co-pilot who originally requested t ...more...

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