2.1 Детали машин. Резьбовые соединения.
Даны основные сведения о резьбах и резьбовых соединениях, применяемых в машинах
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4 years ago 00:05:11 11
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8 years ago 00:03:50 100
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13 years ago 00:34:17 96
7 years ago 00:10:35 3
