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单词 copaiva
释义 coˈpaiva
variant of copaiba. coˈpaivate, a salt of coˈpaivic acid, a crystallizable acid resin (C20H30O2) obtained from copaiba balsam. copaivene, ‘the camphene contained in the crystallized hydrochlorate of copaiba oil’ (Watts).
1863New Syd. Soc. Year Bk. 194 The next step was..to experiment with copaivic acid or with the copaivate of soda.1863–82Watts Dict. Chem., s.v. Copaiba oil, Hydrochlorate of Copahene or Copaivene.
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