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There were many ways to clean up the dust on relics. The following were some common methods: ** I. Choose different physical dust removal methods according to the type and characteristics of the cultural relics ** 1. ** Manual Dust Removal ** - For smaller areas with irregular structures, such as oil painting frames, pictures, etc., manual dust removal can be used. Commonly used tools included microfiber cloth, soft brush, skin blowing, etc. The advantages of manual dust removal were high precision, strong control, and high safety, but the cleaning efficiency was low, people were prone to fatigue, and the dust from the brush was easy to cause secondary pollution. For example, in the dust removal of oil paintings, the dust on the top and bottom of the frame and other small parts was often cleaned by blowing the dust out of the gaps, and then using a brush to clean them. When the dust on the back of the canvas was generally less, it could also be manually cleaned by blowing and using a soft brush. When it was confirmed that the canvas was elastic, tough, and too dusty to be cleaned, it could be considered to use a small vacuum cleaner of museum grade, but the suction mouth should try not to touch the picture. 2. ** Mechanical Dust Removal ** - For large, heavy, and irregular objects, vacuum cleaners and other machinery could be used to remove dust. For example, for larger stone carvings, sculptures, etc., a high-pressure air pump could also be used to blow off the dust that was difficult to be removed by the vacuum cleaner. This method was more efficient, and with various soft brush heads, spray pipes, and suction mouths, it could improve efficiency and operational stability. For example, the cultural relics workers of the Guandi Temple in Jiezhou would use soft wool brushes to remove dust from the indoor statues, use leather bags to blow away the dust on the surface of the cultural relics, and use palm brushes to clean the dust and bird droppings on the outdoor wrought iron. ** 2. Use different cleaning methods according to the quality and preservation of the cultural relics ** 1. ** Dry cleaning ** - If there are stains on the textile cultural relics and they may fade after washing, they should be scrubbed with gasoline or other substances. They can also be sprayed directly on the stains with dry cleaning agent, but the dry cleaning agent should be tested before use. 2. ** Dry Wipe ** - Some artifacts that were afraid of water and some unearthed objects should not be rinsed with water and medicine in order to maintain the natural color of the original artifacts due to the erosion of the earth qi for many years. 3. ** The wind blows ** - For paper items and some fabrics that are not suitable for washing or dry wiping, the air drying method should be chosen to blow off the dust and moisture on the surface. 4. ** Medicinal Cleansing ** - It was mainly used to preserve antiques and unearthed cultural relics in various harsh environments. 5. ** Laser cleaning ** - It could be used to clean a variety of cultural relics. For example, the Palace Museum used laser cleaning technology to "extend the lifespan" of the cultural relics in the collection. Foreign countries such as the Amiens Cathedral in France, the Cathedral of Stockholm in Germany, and the Baptismal Hall in Florence also used this method. In China, the maintenance and cleaning of the Leshan Giant Buddha also used laser cleaning equipment to clean the moss on the giant Buddha. This method was fast, environmental friendly, and efficient. At the same time, there were some precautions in the process of removing dust from cultural relics: 1. The staff must ensure that the operating room is clean when polishing the oil, otherwise the dust will be sealed inside. The use of air purification equipment can alleviate the dust situation. For ventilation equipment equipped with ventilation pipes, air conditioning, etc., a filter can be installed and replaced in time. 2. The frequency of dust removal was not fixed. It depended on the flow of people, the quality of the surrounding air, and the characteristics of the collection. When the foreign museum held an exhibition of cultural relics, it would be cleaned once every two weeks. The average family could consider doing a thorough cleaning once a year. 3. To use professional dust-cleaning tools, feather dusters and ordinary rags were not allowed because the fibers of these materials were thick and hard, making it difficult to clean them thoroughly. It was also easy to leave subtle scratches on the surface of the collection. Moreover, the collection cleaning tools and the cleaning tools for ordinary furniture should be prepared and placed separately. They should not be mixed to avoid cross-contamination. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

From the reference materials, it could be seen that in the story of Tang Zhaozhao and Yu Youchen, he had given her extreme love, but later, he watched her remarry and her family was destroyed. When she was in despair, he even pushed her into a deeper quagmire. In the end, she jumped off the high platform and said that since he could not forgive her in this life, he would meet her again in the next life. However, the plot reference materials of this novel did not give much information. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

If he was reborn as Wang Zhizhi, it would be an experience full of opportunities and challenges. In terms of your career as a player, you can make better use of your current basketball knowledge. In the CBA, starting from 1991 when you joined the Bayi Youth Team, you could rely on advanced training concepts and a deep understanding of the game to show a stronger dominance in the process of dominating the CBA championship from 1996 to 2001. As for the national team, after being selected for the China men's basketball training team in 1994, they could use more modern tactics to help the China men's basketball team achieve better results in the 1996 Atlanta Olympics. In the game against the U.S. team, he could play better against David Robson. When you were selected by the Los Angeles Mavericks in 1999 and joined the NBA in 2001, you could adapt to the American basketball culture and style of play faster. For example, in the 2002 game against the Timberwolves, high-light moments like the one where Garnett was thrown away could appear more often. At the same time, when he encountered setbacks such as being expelled from the national team in October 2002, he could use his wisdom after rebirth to better deal with the relationship with the national team, avoid similar things from happening, and maintain a stable development in the national team and NBA. After retirement, with his understanding of the development trend of modern basketball, he could bring more innovative ideas to the development of China basketball when he served as the head coach of the August 1 Nanchang team, the vice-captain of the Air Force Pentathlon in the Military Sports Training Center, and the coaching team of the China Basketball Team. He could make greater contributions to the training system, tactical arrangements, and player training. " Oh, My Yao " was equally exciting. Everyone, please click to read it!

" Tiny Girl " was a character in a classic fairy tale created by Hans Christian Andersen, a famous fairy tale writer in Denmark. It was first published in 1835 in the second volume of Tales for Children, published in Vienna. The little girl in the story was almost half the length of a thumb, so she was called "thumb girl". She experienced many adventures, such as being kidnapped by toads, abandoned by scarabs, living alone in the forest, being taken in by voles, saving swallows, rejecting the mole's proposal, and finally being taken to the Flower Kingdom by swallows to live a happy life with the Flower Prince. In real life, there was also Hu Yuefang, who was called "thumb girl" in Quanfeng Town, Xiushui County, Jiangxi Province. This was because she was 15 years old but looked like a 3-year-old and was only 1 meter tall. The original work was equally exciting. You could click on the original work of " The Story of Rose " to understand the plot in advance!

There was a novel in which the main characters were Chen Xuan and Zhen Mi. In the story, Chen Xuan traveled to the end of the Eastern Han Dynasty and opened a small tavern to live. His waiter was Dian Wei, the person he scolded was Cao Cao, and the person who asked the stupid question was Xun Yu. When Zhen Mi was forced to marry Yuan Shao's son, Chen Xuan exposed his identity in anger, causing Cao Cao, Liu Bei, Sun Ce, Gongsun Zan and others to act upon hearing the news. The 18 vassals joined forces to attack Yuan Shao. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

There are reasons why so many people go abroad. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

I want to stay in this village. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

The Northeast A & F University research team had once held a Top Ten Singer Competition in Longli County's No. 3 High School. The theme was "Show your artistic style and fulfill your dream of becoming a talent." More than 230 students signed up for the competition. The competition was divided into preliminaries, preliminaries, and finals. On the day of the finals, 15 top ten candidates participated in the competition. The contestants showed their talents in the competition and presented a passionate performance to the audience. After two hours of competition, Class 9 (12), Li Ting's performance of "Cradle of Dreams" won the championship. The runner-up and runner-up were won by Class 8 (12), Yu Huan, and Class 7 (7), Tang Xinxiang. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

The lyrics of the autumn cicada song contained many meanings. First, it expressed the ruthlessness of time and the shortness of life. Although the song of autumn cicadas in autumn was not as loud as that in summer, it also reflected the existence and beauty of life. However, this beauty was very short. The sound disappeared when the autumn wind blew. In the lyrics," the faint dusk, as if waiting for someone ", while feeling the warmth of the setting sun, it also reflected the feeling of the passage of time, suggesting that life was unpredictable. Secondly, the lyrics expressed their feelings and thoughts about the passing of youth. It mentioned that the change of seasons implied the passage of time, such as "full of yellow leaves","the story has been finished","time will not go back" and other expressions reflected the feelings and helplessness of the passing of youth. Finally, the lyrics 'questions such as " How should I face this world?" and " Where is our future?" reflected the protagonist's thoughts and confusion about the future. The novel " Waiting for the Green Cicada to Fall " is equally exciting. Everyone is welcome to click and read it!