Common valve selection and application First, the selection of gate valve application is used as a deadline for the media, the entire circulation straight through, the pressure loss of medium operation is minimal. Gate valve is usually applied to do not often need to open and close, and keep the

Laser is one of the greatest inventions of the 20th century and has been widely used in all fields of daily life. With the progress of science and technology, laser technology is also constantly developing, in which the micro-nano laser is the frontier of the research produced by the intersection

1, conscientiously implement the decision beneficiation plant, resolutions and instructions, adhere to the principle of impartial, law-abiding, in charge of efforts to complete the task; 2. Under the leadership of the factory manager, responsible for the responsibility system assessment of the plan

Intelligent monitoring is the combination of intelligent image analysis and video surveillance, so that the monitoring system can detect some events with fixed rules, to a certain extent, reduce the manpower operation. For example, the most common perimeter smart application, a sensitive area is s

　　  1 Scope This regulation stipulates the safe operation content and requirements of the plate-type heat exchanger for extraction and electrowinning. This procedure is applicable to the work of extraction and electrowinning plate heat exchangers in the wet smelting workshop. 2 c

Speaking of the classic generation of Chinese medium-duty trucks, what do the car friends think is the classic generation? Liberation of CA10, Dongfeng EQ140 or Nanjing Muse Leap Forward? It is true that these vehicles are the representatives of China’s first-generation medium-duty trucks.

Pulling goods often runs in plateau areas such as Tibet and Qinghai. What kind of experience is it? It is a dream of many people to drive by themselves on the highways to experience the beautiful scenery along the highways. However, there is a group of people who work on a daily basis, drivi

According to experts, the existing information technology and Internet-enabled innovation industries have been depleted because the economic growth it brought has been declining for the past 10-15 years and will be getting worse Until a new, savior, revolutionary technique emerges. The Internet of

1) Crossing gap and division of ore blocks For the pillarless sublevel caving method, there is no obvious sign of dividing the nugget. For the convenience of production management, it is generally divided into a nugget by the scope of a chute service. The size of the gap between the wells, the ave

On August 7, the Ministry of Finance and the State Administration of Taxation issued the "People's Republic of China Vehicle Purchase Tax Law (Draft for Comment)" (referred to as "Draft for Comment"), and publicly solicited opinions from the public. The "Draft for Comm

The Seventh National Environmental Protection Conference was held in Beijing on December 20th, 2011. The Ministry of Environmental Protection signed letters of responsibility for the total amount of major pollutants in the “Twelfth Five-year Plan” with local governments and som

Diesel pumps are generally installed in the reverse order of disassembly. Assembly quality is good or bad directly affect the normal operation of the pump, and affect the life of diesel pumps and performance parameters. Assembly should pay attention to the following points: 1, should protect the