превращение
см. тж. преобразование
• We can write a qualitative equation to represent a chemical change involved.
• The conversion of nonaromatic to (or into) aromatic hydrocarbons ...
• Complete transformation of steel from austenite to (or into) martensite ...
• Change, Transmutation ...
Источник:
Русско-английский научно-технический словарь
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