“沥青分级体系”的概念、定义、翻译、参考文献-科学参考

单词	沥青分级体系
释义	沥青分级体系 Encyclopedia 工学道路沥青释 grading system of asphalt沥青分级体系沥青作为一种化工产品，必须按照某个技术指标进行等级划分，以形成不同的标号，满足不同地区和工程的需要。
随便看	concave closure concave closure of a saddle-function concave closure of a saddlefunction concave closure of saddle function concave convex function concave-convex function concave-convex game concave curve concave down concave down curve concave downward concave function concave functional concave grating concave kite concave lens concave metric concave minimization problem concave mirror concave operator concave polygon concave polyhedral angle concave polyhedron concave probability measure concave programming

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。