“butylene”的概念、定义、翻译、参考文献-科学参考

单词	butylene
释义	butylene 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	positive strain energy positive strand positive subspace positive supportive reaction positive (symmetric) operator positive symmetric operator positive system of roots positive term positive term series positive trace positive type positive uniaxial crystal positive value positive variation positive variation of a function positive variation of signed measure positive vector positive vector bundle positive vibrating mitigation positive Weyl chamber positive youth development positive zero positivism positivism methodology of psychology positivism policy analysis

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。