Welcome to the 1520 Perfect Dictionary
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| Ultrasonics | |
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| ULTRASONICS Definition: (acoustics) The study of source wave beyond the range of human hearing (20 kHz) used for nondestructive testing of metals, medical examination of a fetus, and, in very high intensity, for scaling boiler's and in dentist's drilling. _____________________________________ See perfect study (1). ___ See perfect importance. See perfect subject (2). See perfect seriousness. | |
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 |