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Description
La bildo estas kopiita de wikipedia:en. La originala priskribo estas: The four forces on an aircraft: lift, weight, drag and thrust. Image File history File links Commons-logo. ...
Source
own work
Date
05. Feb. 2007
Author
Permission
This image is ineligible for copyright and therefore in the public domain, because it consists entirely of information that is common property and contains no original authorship.
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