Formulas in chalk on a blackboard in the form of abstractionFormulas in chalk on a blackboard in the form of abstraction
Sexy woman in a schoolgirl costume on a blackboard backgroundSexy woman in a schoolgirl costume on a blackboard background
Illustration of words in different fonts written in chalk on a blackboardIllustration of words in different fonts written in chalk on a blackboard
Congratulations on the new year and christmas with chalk on the blackboardCongratulations on the New Year and Christmas with chalk on the blackboard
A famous scientist at the blackboard with formulasA famous scientist at the blackboard with formulas
A scientist on the background of a blackboard with formulasA scientist on the background of a blackboard with formulas
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Плоский с двух сторон кусок дерева небольшой толщины, получаемый путём продольной распилки бревна. Пластина, плита.