Линии чертежа.
Обучение правилам выполнения чертежа для учащихся и студентов.
4 months ago 01:29:42 9
4 months ago 00:13:35 1
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4 months ago 00:47:15 14
4 months ago 01:30:02 1
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4 months ago 00:03:33 10
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4 months ago 00:22:13 1
5 months ago 00:06:36 3
