“grading system of asphalt”的概念、定义、翻译、参考文献-科学参考

单词	grading system of asphalt
释义	grading system of asphalt 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	down shot downsized engine Downsizing downsizing downslope wind Down's syndrome downstep downstream downstream back downstream fish passage facilities downstream processing downstream sequence Down the Mountain downthrust down time Downton Abbey Downtown Pittsburgh downward downward bias downward causality downward compatibility downward concave downward continuation downward control principle downward convex

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