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The metallurgical industry in the Qing Dynasty exceeded the level of the mid-Ming Dynasty. According to statistics from the Geological Survey, the national output of iron smelting by the old method was more than 170,000 tons in 1919, and the output of iron in the late Qing Dynast
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Chinese people have a special emotion for the moon. Chang'e flies to the moon, the Moon Rabbit makes medicine, we are strangers in a foreign land, but we still share the beauty of the moon. The moon represents my heart. Throughout the ages, many thoughts and emotions have been pl
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In Thailand, because most vaccinated people have no symptoms or very mild symptoms when infected with the new coronavirus Omicron variant, many people have the option of quarantining at home.
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Since the terms information and entropy are used in many branches of science, this may sound strange to those familiar with the second law of thermodynamics. How could information and entropy be identical?
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The spring itself is elastic. After being compressed, the spring will have the tendency to return to its initial state, and therefore has elastic potential energy. We can think of it as the energy stored in the overall system of the spring. So the question is Question: If a compr
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This year's high temperature weather has left a deep impression on people. Since June, heat waves have occurred in many places in our country. Starting from July 6, a new round of heat waves is sweeping through parts of the northwest, north and south of our country. It is expecte
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Recently, researchers such as Broad Institute of MIT and Harvard David Liu published a review in Cell to introduce the research progress in this field.
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The Earth is a planet filled with liquid water, with approximately 71% of its surface area covered by seawater, and this number is getting larger as sea levels rise due to global warming. Many people may have wondered what the bottom of the sea looks like. The simple answer is th
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my country's first artificially bred rabbit cat turns one year old. On July 7, the Internet celebrity "Elder Snake" in Xining Wildlife Park is one year and two months old. "She" is my country's first artificially bred rabbit cat. "She" "It not only fills the gap in the successful
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[Source: Shunyi Ecological Environment] Ubiquitous plastic products have facilitated people's lives, but the resulting plastic waste has caused a lot of pollution to the ecological environment...
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01. Nostalgia is a spaceship heading to Mars. ——Douyou 02. Since childhood, I have been taking care of the stars of all generations alone. ——Bai Helin's "Loneliness" 03. The stars should laugh, the universe is a remote place anyway. ——Pasternak 04. All my desires and contemplatio
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Today, an insight into the vision of a once young cosmic artist shows the dust continuum and molecular lines of carbon monoxide and water seen in the pair of SPT0311-58 galaxies. (Image source: ALMA (ESO/NAOJ/NRAO)/S.
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Text/Picture Yangcheng Evening News all-media reporter Wen Cong has completed about 700 experimental projects, filling many gaps in my country's scientific research field... Next month, the China Spallation Neutron Source (CSNS) will have been in operation for four years. With th
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In fact, we are not unfamiliar with the term mycotoxins. They generally exist in grains. The detection of mycotoxins can be carried out on-site. When choosing instruments for testing, we must choose brands with good quality.
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How should we choose testing instruments? When choosing together, we should focus on the quality of the product. Speaking of instruments, online residual chlorine analyzers have a wide range of uses. They are not only very accurate in detecting residual chlorine content, but can
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The main draw of the WTT Singapore Grand Slam has entered its sixth match day. There will be many key matches on March 16, when CCTV5 will broadcast the video live. Sun Yingsha is looking forward to revenge.
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On March 19, 2022, the WTT Singapore Grand Slam entered the ninth match day of the main draw. CCTV-5 will broadcast live the men's singles semi-finals and women's doubles finals of the Singapore Grand Slam.
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Korean table tennis has always been a force that cannot be ignored in the world table tennis. It has shined in the World Table Tennis Championships and the Olympic Games, and has also produced a large number of world champions, such as Yang Yingzi, Hyun Junghwa, Hong Ciyu, Liu Na
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This week, the 2019 ITTF Japan Open will be held in Sapporo. The Chinese team will send its main players to compete, with the goal of regaining the men's and women's singles championships that they lost in this event last year.
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On March 18, 2022, the WTT Singapore Grand Slam entered the eighth match day of the main draw. CCTV Sports Channel broadcasts the Singapore Grand Slam schedule on the 18th live: 19:00 Singapore Grand Slam - women's singles semi-finals and men's doubles finals.
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