в незначительном количестве
• Unsubstituted furanose sugars have never been isolated, although they do exist in small proportion (or to a small extent) in solution.
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Русско-английский научно-технический словарь
на Gufo.me
• Unsubstituted furanose sugars have never been isolated, although they do exist in small proportion (or to a small extent) in solution.