“煤沥青”的概念、定义、翻译、参考文献-科学参考

单词	煤沥青
释义	煤沥青 Encyclopedia 工学道路沥青释 coal tar煤沥青将煤焦油蒸馏加工去除液体馏分后的残余物。约占煤焦油总量的50%～60%，一般为黏稠的液体、半固体或固体，色黑而有光泽。
随便看	rational density rational design rational diagonal rational differential equation rational distance rational distance problem rational division algebra rational divisor rational divisor over k rational domain rational double point rational drug design rational drug use monitoring system rational economic man rational egoism rational element rational-emotive-behavioral therapy rational equation rational equivalence rational equivalence class rational equivalence ring rational expectation equilibrium of complete revelation rational expectation equilibrium，REE rational exponential sum rational expression

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。