any of three isomeric hydrocarbons C4H8; all used in making synthetic rubbers 同义词：butene,
In chemistry, butylene may be an alternate name for the hydrocarbon butene, . It is also a divalent functional group with formula 2? that can be seen as the result of removing two hydrogen atoms from a butane molecule, leaving two free bonds.
例句与用法
1.
Test method for butylene analysis by gas chromatography 用气相色谱法分析丁烯的试验方法
2.
Standard test method for butylene analysis by gas chromatography 气相色谱法分析丁烯的标准试验方法
3.
The reaction kinetics of modification of poly butylene terephthalate via solid state polymerization 固态缩聚法改性聚对苯二甲酸丁二酯的反应动力学
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