“alpha olefins”的概念、定义、翻译、参考文献-科学参考

单词	alpha olefins
释义	alpha olefins Encyclopedia 工学α-烯烃释 alpha olefinsα-烯烃双键在开链分子链端部的单烯烃。分子式RCH═CH2，其中R为烷基。若R为直链烷基，则称为直链α-烯烃。丙烯等低碳烯烃也属α-烯烃的范畴，但工业上所称的α-烯烃通常碳原子数为4或6以上。作为工业产品的α-烯烃，碳数范围分布很宽（C4～C40）。主要用作共聚单体或用于合成洗涤剂醇、增塑剂醇、润滑油添加剂等精细化工产品。
随便看	railway train traction calculation railway transmission network railway transportation railway transportation asset and resource railway transportation cost railway transportation development railway transportation plan railway transportation revenue railway transportation statistics railway transport capacity railway transport enterprise railway transporter for fairing railway transport freight tariff railway transport industry railway transport tariff railway transport vehicle for missile railway tribology railway tunnel maintenance railway unusual-soil subgrade railway video monitoring system railway water pollution prevention and control railway with public welfare characteristics RAIM raimod's cotton Raimond crater

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。