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Cleaning may be fairly time-consuming, depending on automation and the manufacturer's instructions. [ 5 ] Depending on materials, elastomeric components of masks may be damaged by some cleaning methods (such as acetone , ethanol , strong hypochlorite and iodine solutions, quaternary ammonium salts , ethylene oxide , or temperatures over 50 °C ...
3M made $35.4 billion in total sales in 2021 and ranked number 102 in the Fortune 500 list of the largest United States corporations by total revenue. [10] As of 2021, the company had approximately 95,000 employees and operations in more than 70 countries. [11] There are a few international subsidiaries, such as 3M India, 3M Japan, and 3M Canada.
In conventional CT machines, an X-ray tube and detector are physically rotated behind a circular shroud (see the image above right). An alternative, short lived design, known as electron beam tomography (EBT), used electromagnetic deflection of an electron beam within a very large conical X-ray tube and a stationary array of detectors to achieve very high temporal resolution, for imaging of ...
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The Junkers Ju 52/3m (nicknamed Tante Ju ("Aunt Ju") and Iron Annie) is a transport aircraft that was designed and manufactured by German aviation company Junkers.First introduced during 1930 as a civilian airliner, it was adapted into a military transport aircraft by Germany's Nazi regime, who exercised power over the company for its war efforts, over the objections of the company's founder ...
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Although New Zealand follows the convention of a solid yellow line to indicate no passing on roads with two-way traffic, it uses 3 m-long (9 ft 10 in) dashed white lines with a 7 m (23 ft) gap to indicate when passing against opposing traffic is allowed on two-lane roads and shorter ones to separate lanes going in the same direction. The New ...