“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	negative index of inertia negative infinity negative inotropic action negative integer negative ion negative ion mass spectrum negative ion mode negative jump negative K group of a ring negative K-group of a ring negative K-theory negative kurtosis negative leap second negative lens negative life event Negative likelihood ratio negative likelihood ratio negative limit point negative limit set negative list approach to foreign investment administration negative list management negative logic negatively definite negatively definite form negatively definite kernel

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