外表 发表于 2025-3-21 19:14:23
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Beschreibung chemischer Strukturen,non-metal, provided the product displays metallic properties. A binary alloy contains two components, a ternary alloy three, a quaternary four, and so on. An alloy system constitutes all the possible combinations between the components.窒息 发表于 2025-3-22 07:07:10
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,Kugelpackungen mit besetzten Lücken,ly reducible oxidised minerals. The main economic minerals are hematite (Fe.O.), limonite (2Fe.O.. 3H.O), magnetite (Fe.O.) and siderite (FeCO.). Thus the production of iron by far exceeds that of aluminium, although the latter is actually more common in the earth’s crust.cravat 发表于 2025-3-23 05:09:55
Die Elementstrukturen der Nichtmetalle,echanical properties. The processes include those of rolling, forging, pressing, stamping, drawing and extruding. A large quantity of any specific shape must generally be required to justify its essentially complete production by mechanical working; otherwise where possible the shape will be machined out or constructed from standard wrought stock.蜡烛 发表于 2025-3-23 07:20:25
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