Welcome to the 1520 Perfect Dictionary
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| Boundary layer | |
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| BOUNDARY LAYER Definition: The very thin layer of air on the surface of an aircraft in which the viscosity of the air affects its velocity, causing turbulence to build up thereby increasing drag. ___________________________________ See perfect layer (1). ____ See perfect thinness (1). See perfect specificity. See perfect location (1). ____ See perfect air (1). ____ See perfect particularity (1). See perfect characteristic (1). | |
1520 Products |
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1520 Products was established in 2005 with the purpose of entertaining and teaching us on key and important aspects of life (such as marriage, sex, etc) through the playing of games which will allow us to laugh but at the same time pass a message of what is the right or ideal way. |
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 1520 Sex Game |
 1520 Puzzles |
 1520 Marriage Game |