There is recent progress in theory of modified asphalts.
本文在研究沥青改质的理论问题上取得了进展。
At last, the aging mechanism of two asphalts was discussed.
并对沥青的老化机理进行了探讨。
The group constituents of the final mixture are quite similar to those of conventional asphalts.
这种混合物的族组成与常规沥青很相似。
The group constituents of the final mixture are quite similar to those of conventional asphalts.
这种混合物的族组成与常规沥青很相似。
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