Just like if you needed an organic compound like "benzene".
After precisely recording the corresponding material structure, elemental composition, and energy fluctuation of the benzene ring, Jeming can use the Extraction Technique to accurately dismantle and collect the benzene ring structure from various carbon-hydrogen-rich organic compounds.
Even in a completely unknown plane, as long as it's confirmed that there exists a substance or energy within some object that resembles the structural components you need, you can directly extract the necessary part from it.
Amy also began explaining on the side: "This operation is actually quite wasteful for certain novel raw materials because you only take a small part of it, and the rest is discarded."
