单词	septivalent
释义	septivalent /ˌsɛptɪˈveɪl(ə)nt / adjective Chemistry Another term for heptavalent.Vanadium oxides that are in the higher oxidation state, e.g. pentavalent and septavalent oxides of vanadium and complexes thereof have melting points from about 1,200° to about 1,300° F.... In general, manganese ions are found in different valence states from divalent to septavalent.
随便看	good form good-for-naught good-for-nothing good-for-nothingness good-for-nought good for (or on) you (or him, her, etc.)! good-for-something good for the soul Good Friday Good Friday agreement good-going good graces good grief! good guts good guy good hair good-handling good-hearted good-heartedness good Henry good-hitting Good Hope, Cape of good humour good-humoured good-humouredly

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