沥青

Using digital image processing technology is a convenient rapid and precise way to research the microstructure of HMA. And it can be used to find out the internal cause which leads to the difference in macro-performance of HMA.

本研究表明运用数字图象处理技术分析沥青混合料微观结构有方便、快捷、准确的优势，能够从混合料内部结构上探究产生宏观力学性能差异的本质原因。

Potential variability is normally in the performance of HMA, it can be seen much difference between two accordant samples even though they have the same gradation and content of asphalt.

沥青混合料宏观力学性能的变异性很大，即使是级配、油石比等各项指标都完全一致的两个平行试件。

To improve the bearing capacity of old cement concrete pavement and prevent reflective cracking,HMA overlay with SAMI has been used in some highways.

为了提高旧水泥混凝土路面的承载能力和防止出现反射裂缝，用热拌沥青混凝土罩面层并设置 SAMI层的修补技术常被使用。

HMA is a kind of discontinuous material, but the design theory considers it as a continuum currently. As a result, the micro mechanical property was ignored.

沥青混合料是一种具有非连续性特征的道路材料，而当前的道路设计理论却将其处理成连续均质体系，这使得材料的细观力学性质得不到应有的考虑。

Such simplified 1-D Burgers model is extended to 3-D case as the usual treatment like 3-D Hooke's law. Based on the above assumptions, the downward and upward plastic deformations of asphalt pavements have been calculated.

利用刚塑性假定简化一维Burgers模型，从而简化了沥青路面的永久变形计算，据此假定将一维的沥青混合料Burgers模型推广至三维Burgers模型，类似于三维虎克定律。

The rigid-plastic assumption simplifies the 1-D Burgers model and thus simplifies the calculation of plastic deformation.Such simplified 1-D Burgers model is extended to 3-D case as the usual treatment like 3-D Hooke's law.

利用刚塑性假定简化一维Burgers模型，从而简化了沥青路面的永久变形计算，据此假定将一维的沥青混合料Burgers模型推广至三维Burgers模型，类似于三维虎克定律。

The ichthyosaur remains are found in marine shales deposited about 190 million years ago.

人们在黑色的，含沥青的海洋页岩中发现了约 19，000 年前沉积下来的鱼龙化石。

The ichthyosaur remains are found inblack, bituminous marine shales deposited about 190 million years ago.

人们在黑色的，含沥青的海洋页岩中发现了约19，000 年前沉积下来的鱼龙化石

The ichthyosaur remains are found in black, bituminous deposits at Holzmaden, Germany, present an interesting marine shales deposited about 190 million years ago.

人们在黑色的，含沥青的海洋页岩中发现了约 19，000 年前沉积下来的鱼龙化石。

The impactive tenacity is a sort of energy. Therefore, it was used to forecast fatigue life is much scientific than using bottom tensile strain. This test method is simple too. It offered a clew that forecasts fatigue life.

沥青混合料的冲击韧性是一个能量的概念，在原理上比应用拉应变预测疲劳寿命更科学，试验方法简单，为混合料疲劳寿命的预测提供了一个思路。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。