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High-end polyolefin - one of the eight new chemical materials, is a polyolefin product with high technical content, high application performance and high market value.
The over-trillion high-end polyethylene industry explodes! Have you seized this new blue ocean market?
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Polypropylene is one of the most widely used types of general plastics. It has the advantages of low density, good rigidity, resistance to flexing, chemical corrosion, and good insulation. Its shortcomings are poor low-temperature impact performance, easy aging, and large molding
Is polypropylene shrinkage difficult to control? What are the influencing factors? "Attached is a table of shrinkage rates of common materials"
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[Plumbing Valve Network News] Valve corrosion is one of the main reasons for valve failure. There are several forms or causes of corrosion, which can be roughly divided into six forms of corrosion. Corrosion is a natural wasteful way of drawing metals into their ores.
How are hotel valves corroded?
06/05
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More than 50% of the stars in the universe belong to binary star systems. About half a century ago, astronomers proposed a theoretical prediction that binary stars would sometimes form a shared envelope during their evolution. Until recently, Chinese and Australian astronomers jo
How to dance the stellar "pas de deux"? Chinese and Australian astronomers found for the first time direct evidence of shared envelope evolution of binary stars
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This listing is only for the brave, so do your best and witness the magic of these images. These photos from around the world will fascinate you as you see how the spinning planet we live on shocks us.
The white heart, the houses covered with volcanic ash, and the long legs of the owl, there is always one picture that will shock you
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Cockroaches are commonly known as Xiaoqiang, and I believe everyone is familiar with them. Cockroaches are one of the oldest insects on earth, living at the same time as dinosaurs and other ancient creatures. It is even more than 100 million years earlier than the birth of the fi
Should you step on a cockroach if you see one at home?
06/06
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A sand battery works like a solar panel: it collects heat and stores it as energy. But sunny days are extremely rare in Finland, especially in winter. So Finnish experts have invented something similar - an eco-friendly battery with ordinary sand inside. New eco-friendly battery
The world's first sand battery has started working | It helps store thermal energy and heat places
06/06
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No matter from which angle you look at it, Peng Yongzhen is not one of those who wins at the starting line. This academician of the Chinese Academy of Engineering and professor of Beijing University of Technology cut wood in the mountains when he was young, and did not enter univ
Academician Peng Yongzhen: Don’t let “late start” become an excuse
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The current trend of bioweaponization of the new coronavirus also requires us to do a good job in the initial stage, and China has long been at the forefront of the world in the application of information technology, so as long as we unify our thinking, we will definitely be able
Zhang Zhimin: The latest epidemic strain has arrived in Xi'an, only by correct understanding and preparedness can we deal with it calmly
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Chang'e-5 returned to Earth with "fresh" lunar soil samples. While we are still immersed in the joy of the lunar exploration project, NASA in the United States cannot sit still. Their director suggested that China share the soil brought back by Chang'e 5, just like they did with
NASA director made suggestion: China should share Chang'e 5 lunar samples, just like Apollo
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[CNMO News] Weight loss has always been a hot topic among people. Some people eat too much and don’t gain weight, while some people gain weight even if they drink water. Therefore, losing weight also troubles many people. They have tried various methods but still have no effect.
It may be possible to eat dry without gaining weight. German scientists discovered signaling molecules that promote fat burning
06/07
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A bus-sized planet will pass close to Earth today, Thursday, July 7, passing within just 56,000 miles (90,000 kilometers), or 23 percent of the average distance between Earth and the moon. The asteroid, called 2022 NF, is expected to pass safely by our planet, according to calcul
Scientists detect a bus-sized planet that will approach Earth tonight
06/07
1270
In the eyes of many people, "alien" and "alien civilization" are synonymous with advanced civilization, and their civilization is much higher than human civilization. In many science fiction novels and movies, this point is particularly prominent. Aliens always appear to be omnip
Fears that aliens visiting Earth will wipe out human civilization may be unfounded
06/07
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As we all know, since humans have known about the universe, they have always wanted to explore its mysteries. At present, the scientific community generally believes that the earth will not be the only oasis in the universe. After all, the vastness of the universe is beyond our i
Astronaut encounters aliens in space, tells the story of the origin of intelligent life and the cause of the universe, shocking the world
06/07
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In the movie, the dungeon lord Gruishka is waiting for a major makeover in order to capture Alita, with his head and spine hanging in the air and twisting around.
He is gone, "Peter 2.0" lives forever! Cyborg Evolution Design Guide, are you interested?
06/07
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According to relevant records, very "weird" creatures actually appeared in Japan as early as the 1960s and 1970s. At that time, this strange-looking species had a "protruding mouth, hairless body, wrinkled skin, like a dog and a monkey, and walked with a tremble." On the one hand
Mysterious hairless animal with long face discovered in Japan! Experts warn: Don’t touch it, what exactly is it and why?
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Under the epidemic, the economies of all countries are under heavy pressure. A few days ago, Brazil declared national bankruptcy, which is undoubtedly the result of following the United States' lead in fighting the epidemic. Even in the first echelon of the world economy, the dat
Brazil declares bankruptcy, manufacturing saves Germany, once again proving who is the leader in Europe
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While the number of bankruptcies in the Netherlands continues to fall, mainly during the coronavirus crisis, more companies are failing in many other EU countries. This is the conclusion reached by Statistics Netherlands based on Eurostat data.
Bankruptcies fall in Netherlands but rise in many EU countries
06/07
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Whose turn is it for the “sick man of Europe”? Unexpectedly, the latest "hat" is worn on Finland's head. Finnish Finance Minister Alexander Stubb sadly described his country as the "sick man of Europe" - excluding debt-ridden Greece in the European Union, Finland has suffered fro
This once-envied Nordic country has become the "sick man of Europe"
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In the early days of the spread of the COVID-19 epidemic in Europe, two different opinions circulated in European countries that were used to living a comfortable life. One advocated "closing the city" and implementing strict social isolation restrictions, while the other advocat
Sweden's herd immunity strategy declares bankruptcy, with death toll 10 times that of neighboring countries, and the economy will regress by 6%
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#光典curiosity# #成都 headline# Occupational annuity is used as a supplement to pension insurance in the civil service system and public institutions. The payment ratio is 4% for individuals and 8% for units, which is equivalent to 12% withheld every month as an individual. Pension t
Occupational annuity is called the "golden handcuffs" in the workplace. Can I still get it if my original employer goes bankrupt?
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On November 15, ifeng.com Finance disclosed an important piece of information that caused a huge shock in the industry: the China Banking and Insurance Regulatory Commission convened the chief actuaries of 13 insurance companies for window guidance and required them to stop selli
The China Banking and Insurance Regulatory Commission has made a major move: Starting from next month, it will completely stop selling 4.025% annuity insurance, and many products are being removed from the shelves.
06/07
1328