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单词 conversion
释义
conversion

Chemical Engineering
  • A measure of the completeness of a chemical reaction. It is often presented as the fraction of a particular reactant consumed by the chemical reaction. The conversion per pass is a measure of the limiting reactant that is converted in a chemical reactor and recycled for combination with fresh reactant feed. Not all reactions are complete within the reactor, and in many cases, unreacted reactants are separated from products and recycled for further opportunities for reaction.


Philosophy
  • Term used in the theory of the syllogism for a transformation in which the original predicate is made the subject of a proposition, and vice versa. Conversion is sometimes straightforward (with an E or an I proposition): ‘some As are B’ is equivalent to ‘some Bs are A’. But ‘all As are B’ can only be converted with a shift in the figure, being deemed equivalent to ‘some Bs are A’.


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