Engineering
Engineering, 22.07.2021 07:00, nick8894

giải thích tại sao tính toán thiết kế bộ truyền đai dẹt theo khả năng kéo và kiểm nghiệm theo độ bền lâu , còn đối với bộ truyền đai thang thì đồng thời theo hệ số và độ bền lâu

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giải thích tại sao tính toán thiết kế bộ truyền đai dẹt theo khả năng kéo và kiểm nghiệm theo độ bền...

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