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January 24,2020
New Year's Eve is the last night of the end of the year. The last day at the end of the year is called "year-old division", which means that the old one has been removed so far, and anot...
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January 24,2020
The stand alone smoke detector SR-807 is generally directly powered by a 9V laminated battery or AC220V, which is easy to install and use, and can achieve independent detection and independent alarm w...
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January 20,2020
In China, what traditional food for the Spring Festival？
The Spring Festival is an ancient and solemn traditional festival for Chinese people worldwide. When I was a kid, the most hopeful day was C...
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January 15,2020
Spring Festival (Chinese-specific cultural phenomenon)
In China, the Spring Festival is the most important festival of the year. It is the beginning of the year. No matter how far away from the...
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January 11,2020
General term for smoke alarm
With the increase of people's awareness of security, more and more attention has been paid to security products, especially the application of smoke alarms is more ex...
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January 07,2020
If a smoke alarm false occurs, this is a very serious problem. When the fire did not occur, the smoke alarm kept beeping. If it was removed, the fire did occur, but the alarm did not work at this time...
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