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The Red Baron, whose real name was Manfred Albrecht Freiherr von Richthofen, was the most famous German flying ace of World War I. He had a really short flying career, which spanned just over 50 % of World War I, and died with the age of 25 in April 1918 after being shot down over Morlancourt Ridge, at the Somme. He was officially credited with 80 air combat victories, though further report on data indicates that the number may have been better 100. As for Red Baron airplanes, all were Fokkers, or Albatroses, plus one Halberstadt D.II.
The underground metal detector is made of advanced technology. It has the characteristics of wide detection, accurate positioning, strong resolution and easy operation. Metal detectors are mainly used to detect and identify metal objects buried underground. In addition to military applications, it is widely used in security inspection, archaeology and prospecting, and the search for scrap metal, which is also known as "iron probe", which is a good helper for waste recycling.
Access control is really a system enabling authorities to regulate access to areas and resources in the given physical facility or computer-based information system. Access control is, the truth is, perhaps the most common, everyday phenomenon. For example, a lock on the car door is actually a kind of access control. The PIN over a bank's ATM product is another type of access control. Even nightclub bouncers, browsing front of an door, are another example of (perhaps) a much more primitive mode of access control. Using an access control mechanism is vital when persons attempt to secure confidential, important, or sensitive information and equipment.
Liquid filters are commonly used to filter the pool.
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