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In water dispensers, the application requirement for a liquid level sensor is that it does not pollute the water quality, the sensor is not easy to harbor dirt and evil, and it is easy to clean. The principle of the float sensor is to use changes in water level to drive the float
Can photoelectric liquid level sensors replace float sensors in water dispenser applications?
05/22
1507
Ferrous sulfate Ferrous sulfate treats heavy metal ion wastewater. The ferrous ions decomposed by ferrous sulfate in wastewater have strong redox properties and can remove some heavy metals such as divalent copper ions, hexavalent chromium ions, etc. Reduced to the insoluble subs
Ferrous sulfate removes heavy metal ions
05/22
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In the 21st century, fitness and learning have become hot topics.
Fitness and recharging
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The bolt's capping angle and torque monitoring window are generally determined by empirical methods. For example, the torque method's capping angle can be monitored according to 1-720°. The final tightening window of the bolt is generally not determined based on experience, but t
"Tightening Technology Column" How to use statistical methods to ensure bolt tightening quality?
05/22
1093
Probably I have never seen any children from the city. Educated youths were considered a rarity at this time. The adults and children in the ditch came to see us like a revolving door. This was the first time in my life that I heard interesting stories about the countryside that
Our Educated Youth Years - Educated Youth Going to the Countryside (2)
05/22
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Shanghai Aid Diary It has been 27 days since the "Shoushan Aid Medical Team" followed the Shanxi aid Shanghai medical team to Shanghai at the end of April. Although the work was hard and tiring and a lot of sweat was put into it, at the same time, I also gained a lot of warmth, e
"Shanghai Aid Diary" Meng Ling's Thoughts from the Second Department of Tumor and Internal Medicine of "Shoushan Medical Team"
05/22
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It is said that distant relatives are not as good as close neighbors, and as colleagues, we spend more time with each other every day than with family members, so many colleagues have very good relationships. This is the case for Xiao Wang from Hebei. There are ten people in thei
Brother Hebei complained about a dinner party with his colleagues. Eight people spent 500 yuan to eat delicious food, but they were dumbfounded when they paid the bill.
05/22
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Recently, a friend @憆月 posted about the situation of the two rivers in the south and north of Siping. The video he took was really good. I wanted to write about the two rivers in the message, but I couldn’t tell if I wrote too little and too much. It’s also inappropriate to leave
The two rivers surrounding Siping City - my impressions from watching friends’ TikTok
05/22
1903
However, a life full of drama is always unsatisfactory. It said in a condescending tone: "Your academic qualifications are good and your family relationship is clean, but you are not very good at it, so I want your identity. As a human being, even if ”
An Anhui woman was pretended to be a teacher for 17 years. When she found out the truth, she became very arrogant.
05/22
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Mr. Ban Ki-moon and President Obama are both men I like and admire. But don’t think too much. I like them not because of their talents, but because I think they are handsome and elegant. I am a typical face-controller, and I always only pay attention to a person’s external beauty
A friend at the UN headquarters in New York found several old UN photos.
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Since ancient times, there has been a famous saying on the march that a general will not accept the emperor's orders when he is away. This means that generals fighting on the front line have the right to choose not to accept some unreasonable orders from the emperor.
Six famous generals who died due to "blind interference in command" by upper-level leaders
05/23
1030
Maybe it’s because I’m waiting for a desired result, or maybe I want to see the bad guy’s final fate, or maybe it’s because I’m concerned about the reality of the girls. In short, until now, I haven’t figured out how to talk to my daughter about this. thing.
After the Tangshan beating incident, I was educated by my daughter
05/23
1665
Let us use a scientific perspective to interpret what the Five Elements Theory left by our ancestors looks like. Everyone knows that water has three forms, so I don’t need to introduce this, right?
Is metal, wood, water, fire, and earth superstition or science?
05/23
1757
Earlier report: A girl in Luoyang was killed after taking the college entrance examination. Village committee: The case has been solved. Villagers: The murderer was a fellow villager. Cover news reporter Wu Deyu and Yan Wenwen. During the college entrance examination season, it i
Police report that a girl was killed after taking the college entrance examination: the suspect was detained
05/23
1489
There is naturally a City God in the City God's Temple, and "City God", as the name suggests, is a god who protects the people of a place and ensures good weather. People in ancient times believed in gods and believed that where they lived there must be gods with advanced cultiva
Fulfill beauty and measure beauty with practice and action: Longshangxing - Exquisite Lanzhou · Fucheng God's Temple
05/23
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This is a mini workshop, welcome everyone to my text channel! As the title shows: The second generation of various industries is "hereditary", and connections are everywhere, leaving too few opportunities for ordinary people! Pictures from the Internet Pictures from the Internet
The second generation of various industries is "hereditary", and connections are everywhere, leaving too few opportunities for ordinary people.
05/23
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In the 31st year of Guangxu's reign, Yuan Shikai built six Beiyang towns in Beijing, Tianjin, and Shandong based on the Beiyang Standing Army, the Beijing Banner Standing Army, the original Wuwei Right Army, and the First Section of the Ziqiang Army, with Fengshan, Wang Yingkai,
Who will be in charge of the six towns in Beiyang, and what will be their endings?
05/23
1352
You may not know that this millennium died and was buried a year later. Strange things happened on the day of the funeral. The coffin accidentally bled. What happened? When all creatures came, first fog locked the capital, and then dark clouds, and the funeral procession walked f
Why did Empress Dowager Cixi’s coffin bleed?
05/23
1095
Emperor Kangxi in the history of the Qing Dynasty had outstanding political achievements throughout his life. He ascended the throne at the age of eight and took charge of the government at the age of 14. He then captured Oboi, cut off the three vassals, conquered Taiwan, defeate
Is "nine sons seizing the direct descendants" really a political stain on Emperor Kangxi? The truth is exactly the opposite
05/23
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There is a small forest in Fengdenwu Town, Fengrun District, Tangshan. Due to its pleasant environment, it has always been a place for leisure and entertainment for nearby villagers. Many people gather here to sing, dance square dances, and enjoy the cool weather in the summer, s
Why did the murderer of the Tangshan Grove Murder Case commit the crime in such a sensitive period?
05/23
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Looking back on the market recently, it can be said that the overall market has been very, very good. However, if you look at the gains of the CSI 300 and CSI 500 during this period, you will feel very different. I have also recently been optimistic about the CSI 500 and CSI 500.
CSI 500 and CSI 1000 are becoming more and more important
05/23
1199
Recently, with the launch of the large-scale fantasy martial arts drama "Snow in the Snow", it has attracted the attention of a large number of netizens, and many viewers' complaints have become more and more intense as the plot progresses. "In the Snow" is undoubtedly the most p
Heroine Zhang Tianai: She has good looks and acting skills, but why can’t she become popular?
05/23
1699