单词 | tolan |
释义 | Word Frequency tolan(ˈtəʊlæn) or tolane (ˈtəʊleɪn) noun a white crystalline derivative of acetylene; diphenylacetylene; diphenylethyne. Formula:C6H5C:CC6H5 Word origin C19: from tol(uene) + -an (see -ane) |
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