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... chers. Not far in front of him was an easel-like stand, on which were placed handmade ppts made of cardboard, and each cardboard introduced the researchers with pictures and texts. Our experimental process and data, after finishing one sheet, remove the upper cardboard to read the next one.
"Yes, Lord Graeman, phlogiston is exactly the key substance we are looking for. In order to prove its accuracy, we set all possible factors in iron and steel smelting as single variables and conduct co ...
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