E. coli is an important model organism found in high school biology. Many aspects of knowledge are involved, such as the basic structure and division of .....
The hot cathode uvc lamp uses tungsten wire as the cathode body, and its surface is coated with low work function metal oxide. During the working life .....
As a result of the COVID-19 pandemic, there is an increased demand for safe, sanitized public spaces.Ultraviolet light has well-known used in the water, .....
The weather slowly warmed up, and summer came quietly with heat waves.How to avoid get sunburned when going out has become a top priority for people, espe .....
People pay more attention to the quality of life recently years. Many smart home products have entered the public’s field of vision, and steril .....
The cold weather in winter is easy to cause various diseases. The incidence of respiratory-related diseases is the highest. Middle-aged and elderly pe .....
Think of yourself as the most important person in the world. The first person you need to take care of is yourself. ——It is very worthwhile and hap .....
Does the decline in body water mean senescence? Is it that the higher the body's moisture content is, the younger it looks? How to make water a secret recipe f .....
It is no stranger to mention chickenpox, which is an acute infectious disease caused by the first infection of varicella-zoster virus. It mainly occurs in infa .....
How to use uv germicidal lamps safely and effectivelyWith the development of urban life, the concept of environmental protection has been a household name, ultr .....
Ozone, a allotrope of oxygen, Its chemical formula is O3, a bluish gas with a fishy smell. The most frequently mentioned is the ozone in the atmosphere, .....
Spring is the season of high incidence of infectious diseases, enteric infectious diseases, natural focal disease and insect-borne infectious disease their transmission possibility are greatly increased. Common infectious diseases include influenza, epide .....
Electronic ballast is requisite for a gas discharge lamp accessories, some general small problems, we can repair by oneself, the following is a brief introduct .....
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