“丁烯”的概念、定义、翻译、参考文献-科学参考

单词	丁烯
释义	丁烯 Encyclopedia 工学丙烯释 butene；butylene丁烯具有4个碳原子的单一双键链烃化合物。分子式C4H8，常温常压下为无色气体，比空气重，易燃易爆，大都具有特殊气味。理学丁烯释 butene；butylene丁烯化学式为C4H8的烯烃。
随便看	pedagogical wisdom pedal pedal-cevian point pedal circle pedal coordinate pedal curve pedal disc pedal gland pedal line pedal point pedal polygon pedal surface pedal tetrahedron pedal transformation pedal triangle Pedantic Scholars pedding advertisement peddling language Pederson pedestal pedestal crater pedestrian and bicycle traffic system pedestrian and non-motor vehicle transportation planning pedestrian bridge pedestrian crossing facilities

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。