What is SMT (Surface Mount Technology)? PCB Assembly (Part 1)

Name: What is SMT (Surface Mount Technology)? PCB Assembly (Part 1)
Uploaded: 2024-03-29T17:12:04+08:00
Description: What is SMT (Surface Mount Technology)? PCB Assembly (Part 1)

Category：science

2024-03-29

Category Latest News

Author | Chen Zhihan Source | Science and Technology Publicity Cultural Resource Library As the saying goes, "mentality determines age," and more and more studies have proven that this statement is true. The younger you feel, the faster you will recover from your illness. Recentl - DayDayNews
According to a report by U.S. News on July 4, new research shows that in the first year of the COVID-19 outbreak, the mortality rate of pregnant women or women who had just given birth increased sharply in the United States. - DayDayNews
The topic "Zhong Xue Gao does not melt when left at room temperature of 31 degrees Celsius for one hour" has been a hot search topic recently. Netizens doubted that it contains too many additives and dare not eat it. On July 4, a Beijing News reporter purchased 4 ice cream and ic - DayDayNews
Bill Nelson, Administrator of the National Aeronautics and Space Administration (NASA), wrote an article in the German newspaper Bild on July 2 with a shocking title - "NASA Boss Sounds the Alarm: The Chinese Want to Occupy the Moon", Bill Nelson declared in the article that "a n - DayDayNews
Looking at the black bear rushing out in front of him, the old man's heart skipped a beat. Why was the black bear charging towards him? I saw a swarm of bees following behind the black bear. Upon seeing this, the old man immediately jumped into the pool next to him, and the black - DayDayNews
Recently, Hong Kong Weijian Pharmaceutical Group (hereinafter referred to as "Weijian Pharmaceutical") has donated 7 million yen for the second phase of the project to the Affiliated Hospital of the University of Tokyo School of Medicine. So far, Weijian Medicine has donated a to - DayDayNews
[Source: Wenming Chenzhou] Recently, the Lifetime Achievement Award of the Karst Committee of the International Association of Hydrogeologists was awarded at the Eurokarst 2022 conference at the University of Malaga in Spain. Only 3 scientists in the world have received this awar - DayDayNews
Malaria infection has previously been found to change a patient's odor, and researchers have speculated that the same may occur with other mosquito-borne infections, such as dengue fever and Zika virus. Recently, a research team led by Chinese scientists issued a report confirmin - DayDayNews
This variant evolved from the BA.2 variant of the Omicron strain and is called a "second-generation variant". It has many "unusual" mutations and may be able to break through the immunity built by existing vaccines and strain infections. barrier, and the infection speed is relati - DayDayNews
A recent study by Imperial College showed that the COVID-19 vaccine could prevent 20 million deaths worldwide in one year. A recent study by Imperial College London published in the Infectious Diseases column of The Lancet magazine showed that the COVID-19 vaccine prevented nearl - DayDayNews

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