Circuit breakers , active in all areas of the plant! High voltage and low voltage are inseparable from the circuit breaker, it is a very basic low voltage electrical appliances , circuit breakers with overload, short circuit and under voltage protection, the ability to protect th…

[China Instrument Network Instrument Industry] May 20th was the World Metrology Day. The Chongqing Metrology Quality Inspection Institute recalled some of the achievements of the metrology work in Chongqing during the 20 years under its direct jurisdiction.

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The following is an example of an adsorption dryer with a gas volume of 6 m3/min and a working pressure of 08 MPa. The assumption is as follows: atmospheric pressure P1 = 01 MPa (absolute pressure), and the gas volume of the dryer is V1 = 6 m3 / min. Gas temperature T1=293K, design pre…

The study of genetic characteristics of plants in the research of seed plants, whether in agriculture or in forestry, is an important issue. The study of natural genetic properties can not be separated from the arrangement of DNA extraction and the composition of the components of DN…

The wave of listing of LED companies is also emerging. At present, among the listed LED companies, Shenzhen enterprises occupy half of the country, including representatives of Maoshuo Electronics, Lehman Optoelectronics, Chau Ming Technology, Alto Electronics, Ruifeng Optoelectronics, Lianjian…

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Since Electrolux Group recently acquired General Electric's home appliance business, General Electric lost hundreds of patents for home appliances, but its partner Quirky continues to achieve results in the hom…

In order to ensure the quality and safety of agricultural products, with the approval of the State Council, it was decided to stop the production, circulation, and use of five highly toxic pesticides such as methamidophos. The relevant matters are announced as follows:
One or five highly t…

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Question Answer:

Question one: When running dosing system should pay attention to what important matters?

A: A. pressure on the injection point; B. stroke frequency; C. suction height; D. altitude; E. corrosive chemicals

Question two: When the metering pump outlet fo…