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	rhombohedric rhombohedron rhomboid rhomboidal rhomboidally rhomboides rhomboideus rhomboid ligament rhomboid muscle rhombomere rhombomeric rhomb-ovate Rhombozoa rhombozoan rhomb-porphyry rhombus rhonchal rhonchial rhonchus Rhondda Rhonga rhopalic rhopalism rhopalium Rhopalocera

英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。