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字典帮 >教育工具 >英语词汇“ethylidene”的英英意思、用法、释义、翻译、读音、例句、短语、词组、英语词典-本地帮

2025-09-07

“ethylidene”的英英意思

单词

ethylidene

释义

ethylidene Chem.|ɛˈθɪlɪdiːn|
Also 9 -den.
[f. ethyl + -ide + -ene.]
The bivalent hydrocarbon radical CH₃CH{b2}.
1859H. Watts tr. Gmelin's Hand-bk. Chem. XIII. 451 Bromide of ethylidene. C⁴H⁴Br².Ibid. 453 The term ethylidene is applied to a radical (C²H⁴), supposed to exist in a series of compounds derived from aldehyde, and isomeric with the ethylene-compounds.1952Morton & Hoggarth in E. H. Rodd Chem. Carbon Compounds Ib. xiv. 903 Ethylidenediurethane, CH₃CH(NH·CO₂Et)₂, m.p. 126°, from urethane and acetaldehyde.

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