With the development of society and science and technology, people have found one after another light, which has been applied in daily life and work. For example, X-ray screening can be used to detect some harmful substances. So, do you know anything about existing radiation, such as X-rays, alpha-rays, beta-rays, etc? Do you know the difference between them? Here we give a brief introduction, hoping to help you better understand radiation and its applications, such as X-ray screening.

With the development of social economy, there are more and more methods and equipment for safety inspection, and liquid inspection is one of them. I believe most people should have undergone liquid inspection. When you take some liquid into the car or participate in activities, the corresponding security personnel will check before entering the appropriate place. This is the liquid safety check. So, do you know which liquids have to be checked? Under the existing technology, how to check the liquid? Now we briefly introduce the knowledge of liquid inspection, hoping to help you better understand.

With the development of science and technology, the x-ray function has also been recognized by the public. The most common is the X-ray film used by the hospital to illuminate the human body, and the x-ray security instrument that is now more and more widely used, but it always says that taking as f