鼓掌
发表于 2025-4-1 04:13:30
Sedimentology of Arabian dune sands,ured products are compared with the one obtained by grinding. The final product qualities are compared in terms of micro geometrical characteristics and tolerances of the obtained workpiece surfaces are investigated to completely determine its mechanical performances.
syncope
发表于 2025-4-1 06:56:25
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持续
发表于 2025-4-1 12:12:30
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