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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
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Many oligonucleotide drugs require modifications where their phosphate bonds are connected to improve their absorption efficiency and stability (1). Oligonucleotide drugs usually need to be modified to improve stability and absorption efficiency (1). However, this also brings abo
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Many people don't know why astronauts wear spacesuits even in the return capsule when they return to Earth. Since Gagarin entered space in 1961, more than 500 astronauts have launched into space to perform missions, of which 22 astronauts died during the mission.
Three Soviet cosmonauts are sleeping in space, and a special "remains" will fly out of the solar system
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Although the theories discussed on this topic appear to be a bit unfounded, there are many people in Europe and the United States who are preparing for "Judgment Day" and preparing various things in advance. Some people call them doomsday operators.
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"Suddenly the warm wind arrives, following the coming of Little Heat." On July 7, we ushered in the eleventh solar term of the twenty-four solar terms - Little Heat. "The Collection of Seventy-Two Hours of the Moon Order" says, "June Festival...summer, heat, is divided into big a
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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
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Geometrically complex parts are manufactured using wax casting. However, high-quality castings are not always ensured when using this method: defects often form on the product surface. Chemists from the Perm Polytechnic University suggested a technique that would avoid irregulari
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It has long been thought that ancient humans moved out of Africa from primarily relatively affluent woodlands along the Mediterranean coast (1, 2). However, a recent work found that this is not the whole picture (3).
Nature | New research finds the hidden "story" of humans' "out of Africa"
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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.
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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
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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.
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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
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According to the official WeChat message of the Lunar Exploration and Aerospace Engineering Center, the lunar rover and lander of the Chang'e-4 mission "Yutu 2" completed sleep settings at 19:14 on July 5 and 6:00 on July 6 respectively, completing the 44th It works during the da
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The complexity of the universe is endless. Therefore, to say that there are no aliens is to say that there is nothing wrong with your brain. Unfortunately, although we all believe in aliens, most of us have never seen them.
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Text ✎Liangshu Editor✎Liangshu is not cool - the seismometer has been removed from the textbook - because there is a large part of the country at the junction of the Eurasian continental plate and the African plate, our country has also become one of the earthquake-prone countrie
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Cars come into life, choose the car that suits you best. Hello, everyone, I am Hongtao talking about cars.
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The following text is reprinted from Wu Pei's Weibo - I drove the Auchan Z6 today and let's talk about this car and engine. Why can't foreigners make a good car and engine? Auchan's set of car machines is the one that I think is the most thoughtful at present - although the hardw
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It’s time again for various car companies to announce their second quarter results. Among them, BYD's output and sales surpassed Tesla's for the first time, and it became the global new energy sales champion in the first half of the year. In the first and second quarters of this
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To buy a Haval SUV, go to Yulin Hongsen's 20-year-old flagship store. This store is a 4S store under the Guanghui Group and one of the Fortune Global 500 Guanghui Automobiles, so its strength is guaranteed. The quality of car purchases from Xuanda Group is guaranteed. The store i
Comprehensive discount for purchasing a Haval puppy up to 5,000 yuan
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Her hair was disheveled, she cried and fussed, and she scratched and bit me from time to time. I didn't dare to resist at all, so I cowered, lowered my head, laughed, lowered my voice, and kept saying nice things.
Lessons learned from my affair with blood and tears: Extramarital affairs are poisonous and must not be indulged in (emotional story)
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