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hardness ['hɑ:dnɪs] adj.
phys.sc., met.	cruas
hardness Resistance of a solid to indentation, scratching, abrasion or cutting ['hɑ:dnɪs] adj.
environ.	cruas
English thesaurus
hardness ['hɑ:dnɪs] abbr.
abbr.	hdns
jewl.	см. Mohs Scale of Hardness

hardness: 13 phrases in 5 subjects

Agriculture	6
Environment	3
General	2
Industry	1
Metallurgy	1