خواندن بعدی
In choosing materials of construction, we have to compromise between various factors. Use the acronym SHAMROCK to summarize and remember some of them. S = Safety: what are the consequences of failure? If they are serious, a more resistant material …
تعداد عناصر مهم مورد استفاده در محصولات از 6 مورد در سده 18 میلادی به حدود 45 عنصر در زمان حال، افزایش یافته است. Ref. Achzet and Reller, 2011
Tennessee Tuxedo the penguin and his best friend Chumley the Walrus regularly escape from the Megapolis Zoo only to find …
Cast iron is normally not permitted for pressure containment components in hydrocarbon processing streams because of its brittleness, especially in …
