We used a low-pressure (0.1 mbar) hydrogen-argon mixture (10% H₂) with dc plasma ignited between two aluminum electrodes. 2009 January 30, D. C. Elias et al., “Control of Graphene's Properties by Reversible Hydrogenation: Evidence for Graphane”, in Science, volume 323, number 5914, →DOI, page 611:
(abbreviation, alt-of, initialism, qualifier:crochet) Initialism of double crochet.
dc – double crochet [2011 August 23, Carmen Heffernan, “How to make colourful crocheted flowers”, in The Guardian, archived from the original on 24 Dec 2023: