单词	ethene
释义	ethene /ˈɛθiːn / noun Systematic chemical name for ethylene.For example reduction of ethanol gives the alkene ethene.... The alkene ethene can be produced by heating ethanol with (for example) aluminum oxide. Polymerization of ethene gives polythene (polyethylene). Origin Mid 19th century: from ether + -ene.
随便看	subgiant subglacial subglacially subglobose subglobular subglobulose subglottic sub-goal sub-governor subgrade subgrain subgranular subgroup subgrouping subgum sub gum subgumm subgyre Subhanallah subharmonic sub hasta subhastation subhead subheading subhedral

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