ostracize 发表于 2025-3-28 15:55:19

Edward Kh. Gimadi,Aleksandr S. Shevyakov,Alexandr A. Shtepas primary emphasis is on aerodynamic research in aeronautics and astronautics, and in ground transportation and energy as well..978-3-030-25255-7978-3-030-25253-3Series ISSN 1612-2909 Series E-ISSN 1860-0824

灯泡 发表于 2025-3-28 20:25:39

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custody 发表于 2025-3-29 00:47:13

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considerable 发表于 2025-3-29 04:54:23

From Firewood to Coal: Deforestation and the Development of the Silk Reeling Industry in Modern JapaCoal, therefore, did not become important until around the turn of the twentieth century, when steam boilers had become stronger and the gap in the relative prices of coal and firewood had been reduced.
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查看完整版本: Titlebook: Die physikalischen und chemischen Grundlagen der Keramik; Hermann Salmang Textbook 19543rd edition Springer-Verlag Berlin Heidelberg 1954